The @babel/plugin-proposal-class-static-block npm package allows developers to use the static block feature in class definitions within JavaScript code. This feature is a proposal for ECMAScript and is not yet part of the official language specification. The plugin enables Babel to compile code containing static blocks so that it can run in current JavaScript environments.

What are @babel/plugin-proposal-class-static-block's main functionalities?

Static Initialization Blocks

Static initialization blocks allow developers to write a block of code within a class definition that is executed once when the class is created. This is useful for setting up static properties or performing one-time setup for the class.

class MyClass {
  static {
    // Initialization code
    this.myStaticProperty = 'value';
  }
}

Other packages similar to @babel/plugin-proposal-class-static-block

Changelog

Source

v7.21.0 (2023-02-20)

:rocket: New Feature

babel-core, babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-proposal-private-methods, babel-plugin-proposal-private-property-in-object
- #15435 feat: Implement privateFieldsAsSymbols assumption for classes (@fwienber)
babel-helper-create-regexp-features-plugin, babel-plugin-proposal-regexp-modifiers, babel-standalone
- #15226 feat: Support regexp modifiers proposal (@liuxingbaoyu)
babel-cli, babel-core, babel-generator, babel-plugin-transform-destructuring, babel-plugin-transform-modules-commonjs, babel-plugin-transform-react-jsx, babel-traverse
- #15022 feat: Generate sourcemaps of friendly call frames (@liuxingbaoyu)
babel-parser, babel-types
- #15384 [ts] Support const modifier in type parameters (@nicolo-ribaudo)
babel-generator, babel-helpers, babel-parser, babel-plugin-proposal-decorators, babel-plugin-syntax-decorators, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime
- #15405 Implement decorators as presented at 2023-01 TC39 meeting (@nicolo-ribaudo)
babel-parser
- #15114 Parser option to allow new.target outside functions (@overlookmotel)
- #15320 Add annexb: false parser option to disable Annex B (@nicolo-ribaudo)
babel-core
- #15283 feat: Support .cts as configuration file (@liuxingbaoyu)
babel-generator, babel-parser, babel-plugin-transform-typescript
- #15381 [ts] Support export type * from (@nicolo-ribaudo)

:bug: Bug Fix

babel-plugin-transform-typescript
- #15379 [ts5.0] Better inlining of constants in enums (@liuxingbaoyu)
babel-core
- #15366 handling circular/shared structures in deep-clone (@azizghuloum)
babel-helper-create-class-features-plugin, babel-plugin-proposal-class-properties, babel-plugin-proposal-class-static-block, babel-plugin-proposal-private-methods, babel-plugin-transform-classes, babel-plugin-transform-new-target
- #15406 Preserve class elements comments in class transform (@JLHwung)
babel-parser, babel-plugin-transform-flow-comments, babel-plugin-transform-flow-strip-types, babel-types
- #15414 [ts] Fix restrictions for optional parameters (@nicolo-ribaudo)

:nail_care: Polish

babel-parser
- #15400 polish: improve "await as identifier" error in modules (@JLHwung)

:house: Internal

babel-core
- #15137 Improve CJS compat with ESM-based @babel/core (@nicolo-ribaudo)

:microscope: Output optimization

babel-plugin-transform-typescript
- #15418 [ts] Handle exponentiation operator in constant folding (@ehoogeveen-medweb)

Readme

Source