Last change
on this file since 571e0df was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
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1 | var castSlice = require('./_castSlice'),
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2 | hasUnicode = require('./_hasUnicode'),
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3 | stringToArray = require('./_stringToArray'),
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4 | toString = require('./toString');
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5 |
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6 | /**
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7 | * Creates a function like `_.lowerFirst`.
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8 | *
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9 | * @private
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10 | * @param {string} methodName The name of the `String` case method to use.
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11 | * @returns {Function} Returns the new case function.
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12 | */
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13 | function createCaseFirst(methodName) {
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14 | return function(string) {
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15 | string = toString(string);
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16 |
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17 | var strSymbols = hasUnicode(string)
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18 | ? stringToArray(string)
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19 | : undefined;
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20 |
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21 | var chr = strSymbols
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22 | ? strSymbols[0]
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23 | : string.charAt(0);
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24 |
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25 | var trailing = strSymbols
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26 | ? castSlice(strSymbols, 1).join('')
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27 | : string.slice(1);
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28 |
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29 | return chr[methodName]() + trailing;
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30 | };
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31 | }
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32 |
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33 | module.exports = createCaseFirst;
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