How Can I Use Unicode-Aware Regular Expressions in JavaScript?

Unicode-Aware Regular Expressions in JavaScript

In JavaScript, traditional regular expressions only support ASCII characters. To extend regex functionality to include Unicode-aware matching, the following solutions are available:

ES6 Unicode Support

ES6 introduces Unicode-aware regular expressions using the u modifier. This enables matching any code point in the Letters or Marks Unicode categories. Additionally, it supports filters like [[P*]] for punctuation.

Regexpu Transpiler

For ES5 and below, regexpu transpiles ES6 Unicode regexes into equivalent ES5 regexes, making it possible to use these features in older environments.

Custom Character Classes

As a workaround, you can build your own Unicode character classes. Use the Regular Expression: Match Unicode Block Range builder to create regexes that match specific Unicode blocks like punctuation.

Alternative Regex Engines

Libraries like XRegExp offer alternative regex engines with Unicode support, extending JavaScript's native regex capabilities.

References:

• [Unicode-aware regular expressions in ES6](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Unicode)
• [Regex and Unicode](https://stackoverflow.com/questions/9038625/regex-and-unicode)
• [JavaScript has a Unicode problem](https://mathiasbynens.be/notes/javascript-unicode-problem)

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