@babel/plugin-transform-sticky-regex

What is @babel/plugin-transform-sticky-regex?

The @babel/plugin-transform-sticky-regex package is a plugin for Babel, a JavaScript compiler, that transforms sticky regexes (regular expressions with the 'y' flag) into an equivalent form that can be executed in environments that do not support the 'y' flag. This ensures compatibility across different JavaScript environments, including older browsers or JavaScript engines.

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

Transformation of sticky regexes

This feature allows the transformation of sticky regexes, which use the 'y' flag, into a form that can be executed in environments that do not support this flag. The code sample demonstrates how a sticky regex is transformed by the plugin.

"use strict";\n\nvar _regexp = /o+/y;\n\nvar _regexp2 = babelHelpers.wrapRegExp(/o+/, {\n  sticky: true\n});

Other packages similar to @babel/plugin-transform-sticky-regex

regexpu-core

This package is a part of the regexpu project, which is a collection of tools to process regular expressions. While not a direct plugin for Babel, regexpu-core can transform ES2015 Unicode regular expressions into equivalent ES5 syntax. It covers a broader range of regex features, including but not limited to sticky regexes, making it a more comprehensive solution for regex compatibility issues.

README

@babel/plugin-transform-sticky-regex

Compile ES2015 sticky regex to an ES5 RegExp constructor

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

Install

Using npm:

npm install --save-dev @babel/plugin-transform-sticky-regex

or using yarn:

yarn add @babel/plugin-transform-sticky-regex --dev

Changelog

v7.25.9 (2024-10-22)

:bug: Bug Fix

• babel-parser, babel-template, babel-types
  • #16905 fix: Keep type annotations in syntacticPlaceholders mode (@liuxingbaoyu)
• babel-helper-compilation-targets, babel-preset-env
  • #16907 fix: support BROWSERSLIST{,_CONFIG} env (@JLHwung)
• Other
  • #16884 Analyze ClassAccessorProperty to prevent the no-undef rule (@victorenator)

:house: Internal

• babel-helper-transform-fixture-test-runner
  • #16914 remove test options flaky (@JLHwung)

:running_woman: Performance

• babel-parser, babel-types
  • #16918 perf: Make VISITOR_KEYS etc. faster to access (@liuxingbaoyu)