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