Acme.BookStore.HttpApi.Host/node_modules/object.assign/README.md

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#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:
```js
var assign = require('object.assign').getPolyfill(); // returns native method if compliant
	/* or */
var assign = require('object.assign/polyfill')(); // returns native method if compliant
```

## Example

```js
var 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!
```

```js
var target = {
	a: true,
	b: true,
	c: true
};
var source1 = {
	c: false,
	d: false
};
var sourceN = {