object-assign-shim

#Object.assign shim

An Object.assign shim for ES5-compliant environments (browsers/node.js/io.js). Is applied
only when needed with a few exceptions for non-compliant implementations.

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:

In node/io.js:

``js
require('object-assign-shim');
`

In a browser:

`html

`

Example

`js
// 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
};

require('object-assign-shim');
var assert = require('assert');

Object.assign(target, source1, source2, sourceN);
assert.deepEqual(target, expected); // AWESOME!
`

`js
require('object-assign-shim');
var assert = require('assert');
var target = {
a: true,
b: true,
c: true
};
var source1 = {
c: false,
d: false
};
var sourceN = {
e: false
};

var assigned = Object.assign(target, source1, sourceN);
assert.equal(target, assigned); // returns the target object
assert.deepEqual(assigned, {
a: true,
b: true,
c: false,
d: false,
e: false
});
`

`js
var assert = require('assert');
/ when Object.assign is not present /
delete Object.assign;
require('object-assign-shim');
assert.equal(typeof Object.assign, "function");

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
var assert = require('assert');
/ when Object.assign is present /
assert.equal(typeof Object.assign, 'function');
var builtinAssign = Object.assign;
require('object-assign-shim');
assert.equal(builtinAssign, Object.assign);
`

Tests


Simply clone the repo, npm install, and run npm test`