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91c9cb1ea3
* Enable escapeRegExp tests * Ensure escapeRegExp returns an empty string when passing falsy values * Add parens around expression in escapeRegExp
29 lines
819 B
JavaScript
29 lines
819 B
JavaScript
/**
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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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const reRegExpChar = /[\\^$.*+?()[\]{}|]/g
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const 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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* @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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* @see escape, escapeRegExp, unescape
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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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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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export default escapeRegExp
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