babel-plugin-transform-object-rest-spread

This plugin allows Babel to transform rest properties for object destructuring assignment and spread properties for object literals.

Example

Rest Properties

let { x, y, ...z } = { x: 1, y: 2, a: 3, b: 4 };
console.log(x); // 1
console.log(y); // 2
console.log(z); // { a: 3, b: 4 }

Spread Properties

let n = { x, y, ...z };
console.log(n); // { x: 1, y: 2, a: 3, b: 4 }

Installation

npm install --save-dev babel-plugin-transform-object-rest-spread

Usage

Via .babelrc (Recommended)

.babelrc

{
  "plugins": ["transform-object-rest-spread"]
}

Via CLI

babel --plugins transform-object-rest-spread script.js

Via Node API

require("babel-core").transform("code", {
  plugins: ["transform-object-rest-spread"]
});

Options

useBuiltIns

boolean, defaults to false.

By default, this plugin uses Babel's extends helper which polyfills Object.assign. Enabling this option will use Object.assign directly.

.babelrc

{
  "plugins": [
    ["transform-object-rest-spread", { "useBuiltIns": true }]
  ]
}

In

z = { x, ...y };

Out

z = Object.assign({ x }, y);

References

• Proposal: Object Rest/Spread Properties for ECMAScript
• Spec

Current Tags

• 6.26.0                                ...           latest (7 years ago)
• 7.0.0-beta.3                                ...           next (7 years ago)

39 Versions

• 7.0.0-beta.3                                ...           7 years ago
• 7.0.0-beta.2                                ...           7 years ago
• 7.0.0-beta.1                                ...           7 years ago
• 7.0.0-beta.0                                ...           7 years ago
• 7.0.0-alpha.20                                ...           7 years ago
• 6.26.0                                ...           7 years ago
• 7.0.0-alpha.19                                ...           7 years ago
• 7.0.0-alpha.18                                ...           7 years ago
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• 7.0.0-alpha.9                                ...           8 years ago
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• 7.0.0-alpha.3                                ...           8 years ago
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• 6.20.1                                ...           8 years ago
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• 6.0.2                                ...           9 years ago