34 lines
1 KiB
JavaScript
34 lines
1 KiB
JavaScript
var toString = require('./toString'),
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unescapeHtmlChar = require('./_unescapeHtmlChar');
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/** Used to match HTML entities and HTML characters. */
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var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
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reHasEscapedHtml = RegExp(reEscapedHtml.source);
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/**
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* The inverse of `_.escape`; this method converts the HTML entities
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* `&`, `<`, `>`, `"`, and `'` in `string` to
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* their corresponding characters.
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*
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* **Note:** No other HTML entities are unescaped. To unescape additional
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* HTML entities use a third-party library like [_he_](https://mths.be/he).
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*
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* @static
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* @memberOf _
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* @since 0.6.0
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* @category String
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* @param {string} [string=''] The string to unescape.
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* @returns {string} Returns the unescaped string.
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* @example
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*
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* _.unescape('fred, barney, & pebbles');
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* // => 'fred, barney, & pebbles'
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*/
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function unescape(string) {
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string = toString(string);
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return (string && reHasEscapedHtml.test(string))
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? string.replace(reEscapedHtml, unescapeHtmlChar)
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: string;
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}
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module.exports = unescape;
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