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32 lines
871 B
32 lines
871 B
var toString = require('./toString'); |
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/** |
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* Used to match `RegExp` |
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* [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns). |
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*/ |
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var reRegExpChar = /[\\^$.*+?()[\]{}|]/g, |
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reHasRegExpChar = RegExp(reRegExpChar.source); |
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/** |
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* Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+", |
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* "?", "(", ")", "[", "]", "{", "}", and "|" in `string`. |
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* |
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* @static |
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* @memberOf _ |
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* @since 3.0.0 |
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* @category String |
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* @param {string} [string=''] The string to escape. |
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* @returns {string} Returns the escaped string. |
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* @example |
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* |
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* _.escapeRegExp('[lodash](https://lodash.com/)'); |
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* // => '\[lodash\]\(https://lodash\.com/\)' |
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*/ |
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function escapeRegExp(string) { |
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string = toString(string); |
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return (string && reHasRegExpChar.test(string)) |
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? string.replace(reRegExpChar, '\\$&') |
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: string; |
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} |
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module.exports = escapeRegExp;
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