JavaScript Object.assign()
Example
// Create Target Object
const person1 = {
firstName: "John",
lastName: "Doe",
age: 50,
eyeColor: "blue"
};
// Create Source Object
const person2 = {firstName: "Anne",lastName: "Smith"};
// Assign Source to Target
Object.assign(person1, person2);
Try it Yourself »
const person1 = {
firstName: "John",
lastName: "Doe",
age: 50,
eyeColor: "blue"
};
// Create Source Object
const person2 = {firstName: "Anne",lastName: "Smith"};
// Assign Source to Target
Object.assign(person1, person2);
Description
The Object.assign() method copies properties from
one or more source objects to a target object.
Related Methods:
Object.assign() copies properties from a source object to a target object.
Object.create() creates an object from an existing object.
Object.fromEntries() creates an object from a list of keys/values.
Syntax
Object.assign(target, source(s))
Parameters
Parameter
Description
target
Required.
An existing object.
An existing object.
source
Required.
One or more sources.
One or more sources.
Return Value
Type
Description
Object The target object.
Browser Support
Object.assign() is an ECMAScript6 (ES6 2015) feature.
JavaScript 2015 is supported in all browsers since June 2017:
| Chrome 51 |
Edge 15 |
Firefox 54 |
Safari 10 |
Opera 38 |
| May 2016 | Apr 2017 | Jun 2017 | Sep 2016 | Jun 2016 |