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33 lines
811 B
33 lines
811 B
var castSlice = require('./_castSlice'),
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hasUnicode = require('./_hasUnicode'),
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stringToArray = require('./_stringToArray'),
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toString = require('./toString');
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/**
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* Creates a function like `_.lowerFirst`.
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*
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* @private
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* @param {string} methodName The name of the `String` case method to use.
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* @returns {Function} Returns the new case function.
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*/
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function createCaseFirst(methodName) {
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return function(string) {
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string = toString(string);
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var strSymbols = hasUnicode(string)
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? stringToArray(string)
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: undefined;
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var chr = strSymbols
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? strSymbols[0]
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: string.charAt(0);
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var trailing = strSymbols
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? castSlice(strSymbols, 1).join('')
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: string.slice(1);
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return chr[methodName]() + trailing;
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};
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}
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module.exports = createCaseFirst;
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