@babel/plugin-transform-unicode-property-regex

What is @babel/plugin-transform-unicode-property-regex?

The @babel/plugin-transform-unicode-property-regex package is a plugin for Babel, a JavaScript compiler, that transforms Unicode property escapes in regular expressions into a set of Unicode code points, allowing developers to write more readable and maintainable regular expressions for Unicode characters. This plugin is especially useful when targeting environments that do not support the latest ECMAScript standards.

What are @babel/plugin-transform-unicode-property-regex's main functionalities?

Transform Unicode Property Escapes

This code sample demonstrates how a Unicode property escape for matching any character in the Greek script is transformed into a regular expression that matches the equivalent set of Unicode code points.

/\p{Script=Greek}/u

Other packages similar to @babel/plugin-transform-unicode-property-regex

regexpu-core

The regexpu-core package is a regular expression polyfill that transforms Unicode property escapes and other modern RegExp features to be compatible with older JavaScript environments. It provides similar functionality to @babel/plugin-transform-unicode-property-regex but can be used independently of Babel.

babel-plugin-transform-regexp-constructors

This Babel plugin transforms new RegExp constructors to string literals to ensure compatibility with older environments. While it does not specifically target Unicode property escapes, it addresses the broader issue of RegExp compatibility which is a related concern.

README

@babel/plugin-transform-unicode-property-regex

Compile Unicode property escapes in Unicode regular expressions to ES5.

See our website @babel/plugin-transform-unicode-property-regex for more information.

Install

Using npm:

npm install --save-dev @babel/plugin-transform-unicode-property-regex

or using yarn:

yarn add @babel/plugin-transform-unicode-property-regex --dev

Changelog

v7.23.3 (2023-11-09)

:bug: Bug Fix

• babel-plugin-transform-typescript
  • #16071 Strip type-only TS namespaces (@colinaaa)
• babel-generator
  • #16078 Fix indentation when generating comments with concise: true (@liuxingbaoyu)
• babel-compat-data, babel-plugin-bugfix-v8-static-class-fields-redefine-readonly, babel-preset-env
  • #14295 Add a bugfix plugin for https://crbug.com/v8/12421 (@nicolo-ribaudo)
• babel-plugin-transform-object-super
  • #15948 fix: super.x in a loop (@liuxingbaoyu)
• babel-helper-module-transforms, babel-plugin-transform-modules-amd, babel-plugin-transform-modules-commonjs, babel-plugin-transform-modules-umd
  • #16015 fix: handle __proto__ exports name in CJS/AMD/UMD (@magic-akari)

:memo: Documentation

• #16044 docs: Update links in @babel/eslint-parser README (@aryehb)

:house: Internal

• babel-core, babel-preset-env
  • #15988 Refactor handling of modules plugins in preset-env (@nicolo-ribaudo)

:running_woman: Performance

• babel-generator
  • #16061 perf: Improve @babel/generator performance (@liuxingbaoyu)
• babel-traverse
  • #16060 Avoid dynamic dispatch when calling wrapCheck (@yepitschunked)

:microscope: Output optimization

• babel-plugin-transform-computed-properties
  • #6652 Optimize computed properties output (byte-wise) (@Andarist)