@babel/plugin-transform-unicode-escapes

What is @babel/plugin-transform-unicode-escapes?

@babel/plugin-transform-unicode-escapes is a Babel plugin that transforms Unicode escape sequences in JavaScript string literals into their corresponding Unicode characters. This can be useful for improving readability and ensuring compatibility with environments that may not fully support Unicode escape sequences.

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

Transform Unicode Escape Sequences

This feature transforms Unicode escape sequences (e.g., \u0041) into their corresponding Unicode characters (e.g., 'A'). This can make the code more readable and easier to understand.

const str = '\u0041\u0042\u0043'; // ABC

Other packages similar to @babel/plugin-transform-unicode-escapes

unicode-escape

The 'unicode-escape' package provides similar functionality by converting Unicode escape sequences into their corresponding characters. However, it is a standalone utility rather than a Babel plugin, which means it needs to be used separately from the Babel transformation pipeline.

README

@babel/plugin-transform-unicode-escapes

Compile ES2015 Unicode escapes to ES5

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

Install

Using npm:

npm install --save-dev @babel/plugin-transform-unicode-escapes

or using yarn:

yarn add @babel/plugin-transform-unicode-escapes --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)