time-to-botec

Benchmark sampling in different programming languages
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escapeRegExp.js (871B)

      1 var toString = require('./toString');
      2 
      3 /**
      4  * Used to match `RegExp`
      5  * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
      6  */
      7 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
      8     reHasRegExpChar = RegExp(reRegExpChar.source);
      9 
     10 /**
     11  * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
     12  * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
     13  *
     14  * @static
     15  * @memberOf _
     16  * @since 3.0.0
     17  * @category String
     18  * @param {string} [string=''] The string to escape.
     19  * @returns {string} Returns the escaped string.
     20  * @example
     21  *
     22  * _.escapeRegExp('[lodash](https://lodash.com/)');
     23  * // => '\[lodash\]\(https://lodash\.com/\)'
     24  */
     25 function escapeRegExp(string) {
     26   string = toString(string);
     27   return (string && reHasRegExpChar.test(string))
     28     ? string.replace(reRegExpChar, '\\$&')
     29     : string;
     30 }
     31 
     32 module.exports = escapeRegExp;