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es6-object-assign
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The es6-object-assign package is a polyfill for the Object.assign() method, which is part of the ECMAScript 2015 (ES6) standard. This method is used to copy the values of all enumerable own properties from one or more source objects to a target object, returning the target object. This package ensures compatibility for environments where Object.assign() is not natively supported.
Polyfill for Object.assign
This feature allows the user to merge multiple objects into a single object, combining their properties. It is particularly useful for merging configurations or settings objects in JavaScript applications.
var objectAssign = require('es6-object-assign').assign;
var obj1 = { a: 1 };
var obj2 = { b: 2 };
var result = objectAssign(obj1, obj2);
console.log(result); // Output: { a: 1, b: 2 }
Similar to es6-object-assign, object-assign is a polyfill for Object.assign. It is widely used and maintained, offering robust performance and compatibility across different JavaScript environments.
While similar to es6-object-assign in providing an Object.assign polyfill, deep-assign also supports deep merging of objects, which is not supported by the standard Object.assign or es6-object-assign. This makes it useful for more complex object structures.
ECMAScript 2015 (ES2015/ES6) Object.assign() polyfill and ponyfill for ECMAScript 5 environments.
The main definition of this package has been copied from the polyfill defined in the Mozilla Developer Network.
npm install es6-object-assign
The package is also available as a UMD module (compatible with AMD, CommonJS and exposing a global variable ObjectAssign
) in dist/object-assign.js
and dist/object-assign.min.js
(833 bytes minified and gzipped).
The versions with automatic polyfilling are dist/object-assign-auto.js
and dist/object-assign-auto.min.js
.
CommonJS:
// Polyfill, modifying the global Object
require('es6-object-assign').polyfill();
var obj = Object.assign({}, { foo: 'bar' });
// Same version with automatic polyfilling
require('es6-object-assign/auto');
var obj = Object.assign({}, { foo: 'bar' });
// Or ponyfill, using a reference to the function without modifying globals
var assign = require('es6-object-assign').assign;
var obj = assign({}, { foo: 'bar' });
Globals:
Manual polyfill:
<script src="<your-libs-directory>/object-assign.min.js"></script>
<script>
// Polyfill, modifying the global Object
window.ObjectAssign.polyfill();
var obj = Object.assign({}, { foo: 'bar' });
</script>
Automatic polyfill:
<script src="<your-libs-directory>/object-assign-auto.min.js"></script>
<script>
var obj = Object.assign({}, { foo: 'bar' });
</script>
Ponyfill, without modifying globals:
<script src="<your-libs-directory>/object-assign.min.js"></script>
<script>
var assign = window.ObjectAssign.assign;
var obj = assign({}, { foo: 'bar' });
</script>
The MIT License (MIT)
Copyright (c) 2017 Rubén Norte
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
FAQs
ECMAScript 2015 (ES6) Object.assign polyfill and ponyfill
The npm package es6-object-assign receives a total of 1,278,335 weekly downloads. As such, es6-object-assign popularity was classified as popular.
We found that es6-object-assign demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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