小宝贝 2332bb7261 node 1 anno fa
..
.github 2332bb7261 node 1 anno fa
test 2332bb7261 node 1 anno fa
.editorconfig 2332bb7261 node 1 anno fa
.eslintrc 2332bb7261 node 1 anno fa
.nycrc 2332bb7261 node 1 anno fa
CHANGELOG.md 2332bb7261 node 1 anno fa
LICENSE 2332bb7261 node 1 anno fa
README.md 2332bb7261 node 1 anno fa
auto.js 2332bb7261 node 1 anno fa
hasSymbols.js 2332bb7261 node 1 anno fa
implementation.js 2332bb7261 node 1 anno fa
index.js 2332bb7261 node 1 anno fa
package.json 2332bb7261 node 1 anno fa
polyfill.js 2332bb7261 node 1 anno fa
shim.js 2332bb7261 node 1 anno fa
test.html 2332bb7261 node 1 anno fa

README.md

object.assign Version Badge

github actions coverage dependency status dev dependency status License Downloads

npm badge

An Object.assign shim. Invoke its "shim" method to shim Object.assign if it is unavailable.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec. In an ES6 environment, it will also work properly with Symbols.

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:

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

Example

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!
var 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 object
assert.deepEqual(assigned, {
	a: true,
	b: true,
	c: false,
	d: false,
	e: false
});
/* 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));
/* 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