|                                                                                                                                        |  | # object.assign <sup>[![Version Badge][npm-version-svg]][npm-url]</sup>
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An Object.assign shim. Invoke its "shim" method to shim Object.assign if it is unavailable.
This package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES3-supported environment and complies with the [spec](http://www.ecma-international.org/ecma-262/6.0/#sec-object.assign). In an ES6 environment, it will also work properly with `Symbol`s.
Takes a minimum of 2 arguments: `target` and `source`.Takes a variable sized list of source arguments - at least 1, as many as you want.Throws a TypeError if the `target` argument is `null` or `undefined`.
Most common usage:```jsvar assign = require('object.assign').getPolyfill(); // returns native method if compliant	/* or */var assign = require('object.assign/polyfill')(); // returns native method if compliant```
## Example
```jsvar assert = require('assert');
// Multiple sources!var target = { a: true };var source1 = { b: true };var source2 = { c: true };var sourceN = { n: true };
var expected = {	a: true,	b: true,	c: true,	n: true};
assign(target, source1, source2, sourceN);assert.deepEqual(target, expected); // AWESOME!```
```jsvar target = {	a: true,	b: true,	c: true};var source1 = {	c: false,	d: false};var sourceN = {	e: false};
var assigned = assign(target, source1, sourceN);assert.equal(target, assigned); // returns the target objectassert.deepEqual(assigned, {	a: true,	b: true,	c: false,	d: false,	e: false});```
```js/* when Object.assign is not present */delete Object.assign;var shimmedAssign = require('object.assign').shim();	/* or */var shimmedAssign = require('object.assign/shim')();
assert.equal(shimmedAssign, assign);
var target = {	a: true,	b: true,	c: true};var source = {	c: false,	d: false,	e: false};
var assigned = assign(target, source);assert.deepEqual(Object.assign(target, source), assign(target, source));```
```js/* when Object.assign is present */var shimmedAssign = require('object.assign').shim();assert.equal(shimmedAssign, Object.assign);
var target = {	a: true,	b: true,	c: true};var source = {	c: false,	d: false,	e: false};
assert.deepEqual(Object.assign(target, source), assign(target, source));```
## Tests
Simply clone the repo, `npm install`, and run `npm test`
[npm-url]: https://npmjs.org/package/object.assign[npm-version-svg]: http://versionbadg.es/ljharb/object.assign.svg[travis-svg]: https://travis-ci.org/ljharb/object.assign.svg[travis-url]: https://travis-ci.org/ljharb/object.assign[deps-svg]: https://david-dm.org/ljharb/object.assign.svg?theme=shields.io[deps-url]: https://david-dm.org/ljharb/object.assign[dev-deps-svg]: https://david-dm.org/ljharb/object.assign/dev-status.svg?theme=shields.io[dev-deps-url]: https://david-dm.org/ljharb/object.assign#info=devDependencies[npm-badge-png]: https://nodei.co/npm/object.assign.png?downloads=true&stars=true[license-image]: http://img.shields.io/npm/l/object.assign.svg[license-url]: LICENSE[downloads-image]: http://img.shields.io/npm/dm/object.assign.svg[downloads-url]: http://npm-stat.com/charts.html?package=object.assign[codecov-image]: https://codecov.io/gh/ljharb/object.assign/branch/main/graphs/badge.svg[codecov-url]: https://app.codecov.io/gh/ljharb/object.assign/[actions-image]: https://img.shields.io/endpoint?url=https://github-actions-badge-u3jn4tfpocch.runkit.sh/ljharb/object.assign[actions-url]: https://github.com/ljharb/object.assign/actions
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