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800 lines
29 KiB
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## 1.5.1
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- Q.any now annotates its error message to clarify that Q.any was involved and
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includes only the last error emitted. (Ivan Etchart)
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- Avoid domain.dispose during tests in preparation for Node.js 9. (Anna
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Henningsen)
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## 1.5.0
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- Q.any gives an error message from the last rejected promise
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- Throw if callback supplied to "finally" is invalid (@grahamrhay)
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- Long stack trace improvements, can now construct long stack traces
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across rethrows.
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## 1.4.1
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- Address an issue that prevented Q from being used as a `<script>` for
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Firefox add-ons. Q can now be used in any environment that provides `window`
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or `self` globals, favoring `window` since add-ons have an an immutable
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`self` that is distinct from `window`.
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## 1.4.0
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- Add `noConflict` support for use in `<script>` (@jahnjw).
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## 1.3.0
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- Add tracking for unhandled and handled rejections in Node.js (@benjamingr).
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## 1.2.1
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- Fix Node.js environment detection for modern Browserify (@kahnjw).
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## 1.2.0
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- Added Q.any(promisesArray) method (@vergara).
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Returns a promise fulfilled with the value of the first resolved promise in
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promisesArray. If all promises in promisesArray are rejected, it returns
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a rejected promise.
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## 1.1.2
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- Removed extraneous files from the npm package by using the "files"
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whitelist in package.json instead of the .npmignore blacklist.
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(@anton-rudeshko)
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## 1.1.1
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- Fix a pair of regressions in bootstrapping, one which precluded
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WebWorker support, and another that precluded support in
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``<script>`` usage outright. #607
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## 1.1.0
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- Adds support for enabling long stack traces in node.js by setting
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environment variable `Q_DEBUG=1`.
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- Introduces the `tap` method to promises, which will see a value
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pass through without alteration.
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- Use instanceof to recognize own promise instances as opposed to
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thenables.
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- Construct timeout errors with `code === ETIMEDOUT` (Kornel Lesiński)
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- More descriminant CommonJS module environment detection.
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- Dropped continuous integration for Node.js 0.6 and 0.8 because of
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changes to npm that preclude the use of new `^` version predicate
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operator in any transitive dependency.
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- Users can now override `Q.nextTick`.
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## 1.0.1
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- Adds support for `Q.Promise`, which implements common usage of the
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ES6 `Promise` constructor and its methods. `Promise` does not have
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a valid promise constructor and a proper implementation awaits
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version 2 of Q.
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- Removes the console stopgap for a promise inspector. This no longer
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works with any degree of reliability.
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- Fixes support for content security policies that forbid eval. Now
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using the `StopIteration` global to distinguish SpiderMonkey
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generators from ES6 generators, assuming that they will never
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coexist.
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## 1.0.0
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:cake: This is all but a re-release of version 0.9, which has settled
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into a gentle maintenance mode and rightly deserves an official 1.0.
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An ambitious 2.0 release is already around the corner, but 0.9/1.0
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have been distributed far and wide and demand long term support.
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- Q will now attempt to post a debug message in browsers regardless
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of whether window.Touch is defined. Chrome at least now has this
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property regardless of whether touch is supported by the underlying
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hardware.
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- Remove deprecation warning from `promise.valueOf`. The function is
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called by the browser in various ways so there is no way to
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distinguish usage that should be migrated from usage that cannot be
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altered.
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## 0.9.7
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- :warning: `q.min.js` is no longer checked-in. It is however still
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created by Grunt and NPM.
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- Fixes a bug that inhibited `Q.async` with implementations of the new
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ES6 generators.
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- Fixes a bug with `nextTick` affecting Safari 6.0.5 the first time a
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page loads when an `iframe` is involved.
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- Introduces `passByCopy`, `join`, and `race`.
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- Shows stack traces or error messages on the console, instead of
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`Error` objects.
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- Elimintates wrapper methods for improved performance.
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- `Q.all` now propagates progress notifications of the form you might
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expect of ES6 iterations, `{value, index}` where the `value` is the
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progress notification from the promise at `index`.
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## 0.9.6
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- Fixes a bug in recognizing the difference between compatible Q
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promises, and Q promises from before the implementation of "inspect".
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The latter are now coerced.
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- Fixes an infinite asynchronous coercion cycle introduced by former
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solution, in two independently sufficient ways. 1.) All promises
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returned by makePromise now implement "inspect", albeit a default
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that reports that the promise has an "unknown" state. 2.) The
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implementation of "then/when" is now in "then" instead of "when", so
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that the responsibility to "coerce" the given promise rests solely in
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the "when" method and the "then" method may assume that "this" is a
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promise of the right type.
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- Refactors `nextTick` to use an unrolled microtask within Q regardless
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of how new ticks a requested. #316 @rkatic
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## 0.9.5
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- Introduces `inspect` for getting the state of a promise as
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`{state: "fulfilled" | "rejected" | "pending", value | reason}`.
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- Introduces `allSettled` which produces an array of promises states
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for the input promises once they have all "settled". This is in
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accordance with a discussion on Promises/A+ that "settled" refers to
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a promise that is "fulfilled" or "rejected". "resolved" refers to a
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deferred promise that has been "resolved" to another promise,
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"sealing its fate" to the fate of the successor promise.
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- Long stack traces are now off by default. Set `Q.longStackSupport`
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to true to enable long stack traces.
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- Long stack traces can now follow the entire asynchronous history of a
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promise, not just a single jump.
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- Introduces `spawn` for an immediately invoked asychronous generator.
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@jlongster
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- Support for *experimental* synonyms `mapply`, `mcall`, `nmapply`,
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`nmcall` for method invocation.
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## 0.9.4
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- `isPromise` and `isPromiseAlike` now always returns a boolean
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(even for falsy values). #284 @lfac-pt
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- Support for ES6 Generators in `async` #288 @andywingo
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- Clear duplicate promise rejections from dispatch methods #238 @SLaks
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- Unhandled rejection API #296 @domenic
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`stopUnhandledRejectionTracking`, `getUnhandledReasons`,
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`resetUnhandledRejections`.
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## 0.9.3
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- Add the ability to give `Q.timeout`'s errors a custom error message. #270
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@jgrenon
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- Fix Q's call-stack busting behavior in Node.js 0.10, by switching from
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`process.nextTick` to `setImmediate`. #254 #259
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- Fix Q's behavior when used with the Mocha test runner in the browser, since
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Mocha introduces a fake `process` global without a `nextTick` property. #267
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- Fix some, but not all, cases wherein Q would give false positives in its
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unhandled rejection detection (#252). A fix for other cases (#238) is
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hopefully coming soon.
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- Made `Q.promise` throw early if given a non-function.
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## 0.9.2
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- Pass through progress notifications when using `timeout`. #229 @omares
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- Pass through progress notifications when using `delay`.
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- Fix `nbind` to actually bind the `thisArg`. #232 @davidpadbury
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## 0.9.1
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- Made the AMD detection compatible with the RequireJS optimizer's `namespace`
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option. #225 @terinjokes
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- Fix side effects from `valueOf`, and thus from `isFulfilled`, `isRejected`,
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and `isPending`. #226 @benjamn
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## 0.9.0
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This release removes many layers of deprecated methods and brings Q closer to
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alignment with Mark Miller’s TC39 [strawman][] for concurrency. At the same
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time, it fixes many bugs and adds a few features around error handling. Finally,
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it comes with an updated and comprehensive [API Reference][].
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[strawman]: http://wiki.ecmascript.org/doku.php?id=strawman:concurrency
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[API Reference]: https://github.com/kriskowal/q/wiki/API-Reference
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### API Cleanup
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The following deprecated or undocumented methods have been removed.
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Their replacements are listed here:
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<table>
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<thead>
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<tr>
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<th>0.8.x method</th>
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<th>0.9 replacement</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code>Q.ref</code></td>
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<td><code>Q</code></td>
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</tr>
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<tr>
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<td><code>call</code>, <code>apply</code>, <code>bind</code> (*)</td>
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<td><code>fcall</code>/<code>invoke</code>, <code>fapply</code>/<code>post</code>, <code>fbind</code></td>
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</tr>
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<tr>
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<td><code>ncall</code>, <code>napply</code> (*)</td>
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<td><code>nfcall</code>/<code>ninvoke</code>, <code>nfapply</code>/<code>npost</code></td>
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</tr>
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<tr>
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<td><code>end</code></td>
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<td><code>done</code></td>
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</tr>
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<tr>
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<td><code>put</code></td>
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<td><code>set</code></td>
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</tr>
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<tr>
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<td><code>node</code></td>
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<td><code>nbind</code></td>
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</tr>
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<tr>
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<td><code>nend</code></td>
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<td><code>nodeify</code></td>
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</tr>
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<tr>
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<td><code>isResolved</code></td>
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<td><code>isPending</code></td>
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</tr>
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<tr>
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<td><code>deferred.node</code></td>
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<td><code>deferred.makeNodeResolver</code></td>
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</tr>
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<tr>
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<td><code>Method</code>, <code>sender</code></td>
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<td><code>dispatcher</code></td>
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</tr>
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<tr>
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<td><code>send</code></td>
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<td><code>dispatch</code></td>
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</tr>
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<tr>
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<td><code>view</code>, <code>viewInfo</code></td>
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<td>(none)</td>
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</tr>
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</tbody>
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</table>
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(*) Use of ``thisp`` is discouraged. For calling methods, use ``post`` or
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``invoke``.
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### Alignment with the Concurrency Strawman
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- Q now exports a `Q(value)` function, an alias for `resolve`.
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`Q.call`, `Q.apply`, and `Q.bind` were removed to make room for the
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same methods on the function prototype.
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- `invoke` has been aliased to `send` in all its forms.
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- `post` with no method name acts like `fapply`.
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### Error Handling
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- Long stack traces can be turned off by setting `Q.stackJumpLimit` to zero.
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In the future, this property will be used to fine tune how many stack jumps
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are retained in long stack traces; for now, anything nonzero is treated as
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one (since Q only tracks one stack jump at the moment, see #144). #168
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- In Node.js, if there are unhandled rejections when the process exits, they
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are output to the console. #115
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### Other
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- `delete` and `set` (née `put`) no longer have a fulfillment value.
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- Q promises are no longer frozen, which
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[helps with performance](http://code.google.com/p/v8/issues/detail?id=1858).
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- `thenReject` is now included, as a counterpart to `thenResolve`.
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- The included browser `nextTick` shim is now faster. #195 @rkatic.
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### Bug Fixes
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- Q now works in Internet Explorer 10. #186 @ForbesLindesay
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- `fbind` no longer hard-binds the returned function's `this` to `undefined`.
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#202
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- `Q.reject` no longer leaks memory. #148
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- `npost` with no arguments now works. #207
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- `allResolved` now works with non-Q promises ("thenables"). #179
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- `keys` behavior is now correct even in browsers without native
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`Object.keys`. #192 @rkatic
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- `isRejected` and the `exception` property now work correctly if the
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rejection reason is falsy. #198
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### Internals and Advanced
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- The internal interface for a promise now uses
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`dispatchPromise(resolve, op, operands)` instead of `sendPromise(op,
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resolve, ...operands)`, which reduces the cases where Q needs to do
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argument slicing.
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- The internal protocol uses different operands. "put" is now "set".
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"del" is now "delete". "view" and "viewInfo" have been removed.
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- `Q.fulfill` has been added. It is distinct from `Q.resolve` in that
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it does not pass promises through, nor coerces promises from other
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systems. The promise becomes the fulfillment value. This is only
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recommended for use when trying to fulfill a promise with an object that has
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a `then` function that is at the same time not a promise.
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## 0.8.12
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- Treat foreign promises as unresolved in `Q.isFulfilled`; this lets `Q.all`
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work on arrays containing foreign promises. #154
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- Fix minor incompliances with the [Promises/A+ spec][] and [test suite][]. #157
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#158
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[Promises/A+ spec]: http://promises-aplus.github.com/promises-spec/
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[test suite]: https://github.com/promises-aplus/promises-tests
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## 0.8.11
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- Added ``nfcall``, ``nfapply``, and ``nfbind`` as ``thisp``-less versions of
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``ncall``, ``napply``, and ``nbind``. The latter are now deprecated. #142
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- Long stack traces no longer cause linearly-growing memory usage when chaining
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promises together. #111
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- Inspecting ``error.stack`` in a rejection handler will now give a long stack
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trace. #103
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- Fixed ``Q.timeout`` to clear its timeout handle when the promise is rejected;
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previously, it kept the event loop alive until the timeout period expired.
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#145 @dfilatov
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- Added `q/queue` module, which exports an infinite promise queue
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constructor.
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## 0.8.10
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- Added ``done`` as a replacement for ``end``, taking the usual fulfillment,
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rejection, and progress handlers. It's essentially equivalent to
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``then(f, r, p).end()``.
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- Added ``Q.onerror``, a settable error trap that you can use to get full stack
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traces for uncaught errors. #94
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- Added ``thenResolve`` as a shortcut for returning a constant value once a
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promise is fulfilled. #108 @ForbesLindesay
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- Various tweaks to progress notification, including propagation and
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transformation of progress values and only forwarding a single progress
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object.
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- Renamed ``nend`` to ``nodeify``. It no longer returns an always-fulfilled
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promise when a Node callback is passed.
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- ``deferred.resolve`` and ``deferred.reject`` no longer (sometimes) return
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``deferred.promise``.
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- Fixed stack traces getting mangled if they hit ``end`` twice. #116 #121 @ef4
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- Fixed ``ninvoke`` and ``npost`` to work on promises for objects with Node
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methods. #134
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- Fixed accidental coercion of objects with nontrivial ``valueOf`` methods,
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like ``Date``s, by the promise's ``valueOf`` method. #135
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- Fixed ``spread`` not calling the passed rejection handler if given a rejected
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promise.
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## 0.8.9
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- Added ``nend``
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- Added preliminary progress notification support, via
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``promise.then(onFulfilled, onRejected, onProgress)``,
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``promise.progress(onProgress)``, and ``deferred.notify(...progressData)``.
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- Made ``put`` and ``del`` return the object acted upon for easier chaining.
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#84
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- Fixed coercion cycles with cooperating promises. #106
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## 0.8.7
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- Support [Montage Require](http://github.com/kriskowal/mr)
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## 0.8.6
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- Fixed ``npost`` and ``ninvoke`` to pass the correct ``thisp``. #74
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- Fixed various cases involving unorthodox rejection reasons. #73 #90
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@ef4
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- Fixed double-resolving of misbehaved custom promises. #75
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- Sped up ``Q.all`` for arrays contain already-resolved promises or scalar
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values. @ForbesLindesay
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- Made stack trace filtering work when concatenating assets. #93 @ef4
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- Added warnings for deprecated methods. @ForbesLindesay
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- Added ``.npmignore`` file so that dependent packages get a slimmer
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``node_modules`` directory.
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## 0.8.5
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- Added preliminary support for long traces (@domenic)
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- Added ``fapply``, ``fcall``, ``fbind`` for non-thisp
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promised function calls.
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- Added ``return`` for async generators, where generators
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are implemented.
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- Rejected promises now have an "exception" property. If an object
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isRejected(object), then object.valueOf().exception will
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be the wrapped error.
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- Added Jasmine specifications
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- Support Internet Explorers 7–9 (with multiple bug fixes @domenic)
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- Support Firefox 12
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- Support Safari 5.1.5
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- Support Chrome 18
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## 0.8.4
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- WARNING: ``promise.timeout`` is now rejected with an ``Error`` object
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and the message now includes the duration of the timeout in
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miliseconds. This doesn't constitute (in my opinion) a
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backward-incompatibility since it is a change of an undocumented and
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unspecified public behavior, but if you happened to depend on the
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exception being a string, you will need to revise your code.
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- Added ``deferred.makeNodeResolver()`` to replace the more cryptic
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``deferred.node()`` method.
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- Added experimental ``Q.promise(maker(resolve, reject))`` to make a
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promise inside a callback, such that thrown exceptions in the
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callback are converted and the resolver and rejecter are arguments.
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This is a shorthand for making a deferred directly and inspired by
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@gozala’s stream constructor pattern and the Microsoft Windows Metro
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Promise constructor interface.
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- Added experimental ``Q.begin()`` that is intended to kick off chains
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of ``.then`` so that each of these can be reordered without having to
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edit the new and former first step.
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## 0.8.3
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- Added ``isFulfilled``, ``isRejected``, and ``isResolved``
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to the promise prototype.
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- Added ``allResolved`` for waiting for every promise to either be
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fulfilled or rejected, without propagating an error. @utvara #53
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- Added ``Q.bind`` as a method to transform functions that
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return and throw into promise-returning functions. See
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[an example](https://gist.github.com/1782808). @domenic
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- Renamed ``node`` export to ``nbind``, and added ``napply`` to
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complete the set. ``node`` remains as deprecated. @domenic #58
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- Renamed ``Method`` export to ``sender``. ``Method``
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remains as deprecated and will be removed in the next
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major version since I expect it has very little usage.
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- Added browser console message indicating a live list of
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unhandled errors.
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- Added support for ``msSetImmediate`` (IE10) or ``setImmediate``
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(available via [polyfill](https://github.com/NobleJS/setImmediate))
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as a browser-side ``nextTick`` implementation. #44 #50 #59
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- Stopped using the event-queue dependency, which was in place for
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Narwhal support: now directly using ``process.nextTick``.
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- WARNING: EXPERIMENTAL: added ``finally`` alias for ``fin``, ``catch``
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alias for ``fail``, ``try`` alias for ``call``, and ``delete`` alias
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for ``del``. These properties are enquoted in the library for
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cross-browser compatibility, but may be used as property names in
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modern engines.
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## 0.8.2
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- Deprecated ``ref`` in favor of ``resolve`` as recommended by
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@domenic.
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- Update event-queue dependency.
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## 0.8.1
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- Fixed Opera bug. #35 @cadorn
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- Fixed ``Q.all([])`` #32 @domenic
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## 0.8.0
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- WARNING: ``enqueue`` removed. Use ``nextTick`` instead.
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This is more consistent with NodeJS and (subjectively)
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more explicit and intuitive.
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- WARNING: ``def`` removed. Use ``master`` instead. The
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term ``def`` was too confusing to new users.
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- WARNING: ``spy`` removed in favor of ``fin``.
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- WARNING: ``wait`` removed. Do ``all(args).get(0)`` instead.
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- WARNING: ``join`` removed. Do ``all(args).spread(callback)`` instead.
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- WARNING: Removed the ``Q`` function module.exports alias
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for ``Q.ref``. It conflicts with ``Q.apply`` in weird
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ways, making it uncallable.
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- Revised ``delay`` so that it accepts both ``(value,
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timeout)`` and ``(timeout)`` variations based on
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arguments length.
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- Added ``ref().spread(cb(...args))``, a variant of
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``then`` that spreads an array across multiple arguments.
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Useful with ``all()``.
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- Added ``defer().node()`` Node callback generator. The
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callback accepts ``(error, value)`` or ``(error,
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...values)``. For multiple value arguments, the
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fulfillment value is an array, useful in conjunction with
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``spread``.
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- Added ``node`` and ``ncall``, both with the signature
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``(fun, thisp_opt, ...args)``. The former is a decorator
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and the latter calls immediately. ``node`` optional
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binds and partially applies. ``ncall`` can bind and pass
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arguments.
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## 0.7.2
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- Fixed thenable promise assimilation.
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## 0.7.1
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- Stopped shimming ``Array.prototype.reduce``. The
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enumerable property has bad side-effects. Libraries that
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depend on this (for example, QQ) will need to be revised.
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## 0.7.0 - BACKWARD INCOMPATIBILITY
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- WARNING: Removed ``report`` and ``asap``
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- WARNING: The ``callback`` argument of the ``fin``
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function no longer receives any arguments. Thus, it can
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be used to call functions that should not receive
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arguments on resolution. Use ``when``, ``then``, or
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``fail`` if you need a value.
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- IMPORTANT: Fixed a bug in the use of ``MessageChannel``
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for ``nextTick``.
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- Renamed ``enqueue`` to ``nextTick``.
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- Added experimental ``view`` and ``viewInfo`` for creating
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views of promises either when or before they're
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fulfilled.
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- Shims are now externally applied so subsequent scripts or
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dependees can use them.
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- Improved minification results.
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- Improved readability.
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## 0.6.0 - BACKWARD INCOMPATIBILITY
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- WARNING: In practice, the implementation of ``spy`` and
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the name ``fin`` were useful. I've removed the old
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``fin`` implementation and renamed/aliased ``spy``.
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- The "q" module now exports its ``ref`` function as a "Q"
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constructor, with module systems that support exports
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assignment including NodeJS, RequireJS, and when used as
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a ``<script>`` tag. Notably, strictly compliant CommonJS
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does not support this, but UncommonJS does.
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- Added ``async`` decorator for generators that use yield
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to "trampoline" promises. In engines that support
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generators (SpiderMonkey), this will greatly reduce the
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need for nested callbacks.
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- Made ``when`` chainable.
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- Made ``all`` chainable.
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## 0.5.3
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- Added ``all`` and refactored ``join`` and ``wait`` to use
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it. All of these will now reject at the earliest
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rejection.
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## 0.5.2
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- Minor improvement to ``spy``; now waits for resolution of
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callback promise.
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## 0.5.1
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- Made most Q API methods chainable on promise objects, and
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turned the previous promise-methods of ``join``,
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``wait``, and ``report`` into Q API methods.
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- Added ``apply`` and ``call`` to the Q API, and ``apply``
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as a promise handler.
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- Added ``fail``, ``fin``, and ``spy`` to Q and the promise
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prototype for convenience when observing rejection,
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fulfillment and rejection, or just observing without
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affecting the resolution.
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- Renamed ``def`` (although ``def`` remains shimmed until
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the next major release) to ``master``.
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- Switched to using ``MessageChannel`` for next tick task
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enqueue in browsers that support it.
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## 0.5.0 - MINOR BACKWARD INCOMPATIBILITY
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- Exceptions are no longer reported when consumed.
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- Removed ``error`` from the API. Since exceptions are
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getting consumed, throwing them in an errback causes the
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exception to silently disappear. Use ``end``.
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- Added ``end`` as both an API method and a promise-chain
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ending method. It causes propagated rejections to be
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thrown, which allows Node to write stack traces and
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emit ``uncaughtException`` events, and browsers to
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likewise emit ``onerror`` and log to the console.
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- Added ``join`` and ``wait`` as promise chain functions,
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so you can wait for variadic promises, returning your own
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promise back, or join variadic promises, resolving with a
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callback that receives variadic fulfillment values.
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## 0.4.4
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- ``end`` no longer returns a promise. It is the end of the
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promise chain.
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- Stopped reporting thrown exceptions in ``when`` callbacks
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and errbacks. These must be explicitly reported through
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``.end()``, ``.then(null, Q.error)``, or some other
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mechanism.
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- Added ``report`` as an API method, which can be used as
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an errback to report and propagate an error.
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- Added ``report`` as a promise-chain method, so an error
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can be reported if it passes such a gate.
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## 0.4.3
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- Fixed ``<script>`` support that regressed with 0.4.2
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because of "use strict" in the module system
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multi-plexer.
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## 0.4.2
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- Added support for RequireJS (jburke)
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## 0.4.1
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- Added an "end" method to the promise prototype,
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as a shorthand for waiting for the promise to
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be resolved gracefully, and failing to do so,
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to dump an error message.
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## 0.4.0 - BACKWARD INCOMPATIBLE*
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- *Removed the utility modules. NPM and Node no longer
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expose any module except the main module. These have
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been moved and merged into the "qq" package.
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- *In a non-CommonJS browser, q.js can be used as a script.
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It now creates a Q global variable.
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- Fixed thenable assimilation.
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- Fixed some issues with asap, when it resolves to
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undefined, or throws an exception.
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## 0.3.0 - BACKWARD-INCOMPATIBLE
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- The `post` method has been reverted to its original
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signature, as provided in Tyler Close's `ref_send` API.
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That is, `post` accepts two arguments, the second of
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which is an arbitrary object, but usually invocation
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arguments as an `Array`. To provide variadic arguments
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to `post`, there is a new `invoke` function that posts
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the variadic arguments to the value given in the first
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argument.
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- The `defined` method has been moved from `q` to `q/util`
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since it gets no use in practice but is still
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theoretically useful.
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- The `Promise` constructor has been renamed to
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`makePromise` to be consistent with the convention that
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functions that do not require the `new` keyword to be
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used as constructors have camelCase names.
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- The `isResolved` function has been renamed to
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`isFulfilled`. There is a new `isResolved` function that
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indicates whether a value is not a promise or, if it is a
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promise, whether it has been either fulfilled or
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rejected. The code has been revised to reflect this
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nuance in terminology.
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## 0.2.10
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- Added `join` to `"q/util"` for variadically joining
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multiple promises.
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## 0.2.9
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- The future-compatible `invoke` method has been added,
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to replace `post`, since `post` will become backward-
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incompatible in the next major release.
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- Exceptions thrown in the callbacks of a `when` call are
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now emitted to Node's `"uncaughtException"` `process`
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event in addition to being returned as a rejection reason.
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## 0.2.8
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- Exceptions thrown in the callbacks of a `when` call
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are now consumed, warned, and transformed into
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rejections of the promise returned by `when`.
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## 0.2.7
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- Fixed a minor bug in thenable assimilation, regressed
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because of the change in the forwarding protocol.
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- Fixed behavior of "q/util" `deep` method on dates and
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other primitives. Github issue #11.
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## 0.2.6
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- Thenables (objects with a "then" method) are accepted
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and provided, bringing this implementation of Q
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into conformance with Promises/A, B, and D.
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- Added `makePromise`, to replace the `Promise` function
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eventually.
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- Rejections are now also duck-typed. A rejection is a
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promise with a valueOf method that returns a rejection
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descriptor. A rejection descriptor has a
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"promiseRejected" property equal to "true" and a
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"reason" property corresponding to the rejection reason.
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- Altered the `makePromise` API such that the `fallback`
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method no longer receives a superfluous `resolved` method
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after the `operator`. The fallback method is responsible
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only for returning a resolution. This breaks an
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undocumented API, so third-party API's depending on the
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previous undocumented behavior may break.
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## 0.2.5
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- Changed promises into a duck-type such that multiple
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instances of the Q module can exchange promise objects.
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A promise is now defined as "an object that implements the
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`promiseSend(op, resolved, ...)` method and `valueOf`".
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- Exceptions in promises are now captured and returned
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as rejections.
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## 0.2.4
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- Fixed bug in `ref` that prevented `del` messages from
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being received (gozala)
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- Fixed a conflict with FireFox 4; constructor property
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is now read-only.
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## 0.2.3
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- Added `keys` message to promises and to the promise API.
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## 0.2.2
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- Added boilerplate to `q/queue` and `q/util`.
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- Fixed missing dependency to `q/queue`.
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## 0.2.1
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- The `resolve` and `reject` methods of `defer` objects now
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return the resolution promise for convenience.
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- Added `q/util`, which provides `step`, `delay`, `shallow`,
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`deep`, and three reduction orders.
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- Added `q/queue` module for a promise `Queue`.
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- Added `q-comm` to the list of compatible libraries.
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- Deprecated `defined` from `q`, with intent to move it to
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`q/util`.
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## 0.2.0 - BACKWARD INCOMPATIBLE
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- Changed post(ref, name, args) to variadic
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post(ref, name, ...args). BACKWARD INCOMPATIBLE
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- Added a def(value) method to annotate an object as being
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necessarily a local value that cannot be serialized, such
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that inter-process/worker/vat promise communication
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libraries will send messages to it, but never send it
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back.
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- Added a send(value, op, ...args) method to the public API, for
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forwarding messages to a value or promise in a future turn.
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## 0.1.9
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- Added isRejected() for testing whether a value is a rejected
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promise. isResolved() retains the behavior of stating
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that rejected promises are not resolved.
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## 0.1.8
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- Fixed isResolved(null) and isResolved(undefined) [issue #9]
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- Fixed a problem with the Object.create shim
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## 0.1.7
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- shimmed ES5 Object.create in addition to Object.freeze
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for compatibility on non-ES5 engines (gozala)
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## 0.1.6
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- Q.isResolved added
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- promise.valueOf() now returns the value of resolved
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and near values
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- asap retried
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- promises are frozen when possible
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## 0.1.5
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- fixed dependency list for Teleport (gozala)
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- all unit tests now pass (gozala)
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## 0.1.4
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- added support for Teleport as an engine (gozala)
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- simplified and updated methods for getting internal
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print and enqueue functions universally (gozala)
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## 0.1.3
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- fixed erroneous link to the q module in package.json
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## 0.1.2
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- restructured for overlay style package compatibility
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## 0.1.0
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- removed asap because it was broken, probably down to the
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philosophy.
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## 0.0.3
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- removed q-util
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- fixed asap so it returns a value if completed
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## 0.0.2
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- added q-util
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## 0.0.1
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- initial version
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