@babel/plugin-transform-spread
Advanced tools
The @babel/plugin-transform-spread npm package is a plugin for Babel, a JavaScript compiler, that transforms spread properties in object literals and spread elements in array literals into a form that can be understood by environments that do not support the spread syntax. This transformation ensures compatibility with older browsers or JavaScript environments.
Object Spread
Transforms spread properties in object literals to use Object.assign, enabling the combination of multiple objects into one.
{"const obj1 = { a: 1, b: 2 };\nconst obj2 = { ...obj1, c: 3 };\n// Transformed to:\n// const obj2 = Object.assign({}, obj1, { c: 3 });"}Array Spread
Transforms spread elements in array literals to use Array.concat, allowing the creation of new arrays by combining or adding elements.
{"const arr1 = [1, 2];\nconst arr2 = [...arr1, 3, 4];\n// Transformed to:\n// const arr2 = arr1.concat([3, 4]);"}This package provides functionality similar to @babel/plugin-transform-spread but focuses on both spreading of elements and the rest properties for object destructuring assignment and spread properties for object literals. It's a more comprehensive solution for handling spread and rest properties in modern JavaScript.
While not a direct alternative, core-js includes polyfills for many ECMAScript features, including the spread syntax. It allows developers to use spread syntax in environments that do not natively support it by providing the necessary polyfills.
Compile ES2015 spread to ES5
See our website @babel/plugin-transform-spread for more information.
Using npm:
npm install --save-dev @babel/plugin-transform-spread
or using yarn:
yarn add @babel/plugin-transform-spread --dev
v7.25.9 (2024-10-22)
babel-parser, babel-template, babel-types
syntacticPlaceholders mode (@liuxingbaoyu)babel-helper-compilation-targets, babel-preset-env
ClassAccessorProperty to prevent the no-undef rule (@victorenator)babel-parser, babel-types
VISITOR_KEYS etc. faster to access (@liuxingbaoyu)FAQs
Compile ES2015 spread to ES5
The npm package @babel/plugin-transform-spread receives a total of 24,158,441 weekly downloads. As such, @babel/plugin-transform-spread popularity was classified as popular.
We found that @babel/plugin-transform-spread demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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