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@babel/plugin-transform-classes

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@babel/plugin-transform-classes

Compile ES2015 classes to ES5


Version published
Maintainers
4
Weekly downloads
23,963,505
decreased by-5.13%

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Package description

What is @babel/plugin-transform-classes?

The @babel/plugin-transform-classes package is a plugin for Babel that transforms ES2015+ class syntax into equivalent ES5 code. This is useful for ensuring compatibility with environments that do not support the latest JavaScript features.

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

Class transformation

Transforms ES2015+ class syntax into equivalent ES5 constructor functions with prototype methods.

{"class MyClass { constructor(name) { this.name = name; } greet() { return 'Hello, ' + this.name; } } }

Super calls

Handles 'super' calls and transforms them into appropriate ES5 code that calls the parent class constructor or methods.

{"class ChildClass extends ParentClass { constructor(name) { super(name); } } }

Static methods

Transforms static methods in classes to static methods on the constructor function in ES5.

{"class MyClass { static myStaticMethod() { return 'I am static'; } } }

Instance properties

Transforms class instance properties into assignments within the constructor function.

{"class MyClass { myProperty = 'default value'; } }

Other packages similar to @babel/plugin-transform-classes

Changelog

Source

v7.18.9 (2022-07-18)

:bug: Bug Fix
  • babel-plugin-transform-modules-systemjs, babel-types
    • #14763 fix: allow exporting TSDeclareFunction as default (@zxbodya)
  • babel-generator
:nail_care: Polish
:house: Internal
  • babel-core, babel-helper-remap-async-to-generator, babel-helpers, babel-parser, babel-plugin-transform-block-scoping, babel-preset-env
  • babel-helper-create-class-features-plugin, babel-helper-member-expression-to-functions, babel-helper-remap-async-to-generator, babel-helper-replace-supers, babel-helper-wrap-function, babel-helpers, babel-plugin-bugfix-v8-spread-parameters-in-optional-chaining, babel-plugin-proposal-decorators, babel-plugin-proposal-object-rest-spread, babel-plugin-proposal-optional-chaining, babel-plugin-transform-block-scoping, babel-plugin-transform-classes, babel-traverse, babel-types
:running_woman: Performance

Readme

Source

@babel/plugin-transform-classes

Compile ES2015 classes to ES5

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

Install

Using npm:

npm install --save-dev @babel/plugin-transform-classes

or using yarn:

yarn add @babel/plugin-transform-classes --dev

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Last updated on 18 Jul 2022

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