JavaScript Object.assign()

Definition and usage

Object.assign() Methods used to copy the properties of one or more source objects to the target object.

Related methods:

Object.assign() Copy the properties of the source object to the target object.

Object.create() Create a new object from an existing object.

Object.fromEntries() Create an object from a list of key/value pairs.

Instance

}
// Create the target object
  const person1 = {
  firstName: "Bill",
  lastName: "Gates",
  age: 50,
eyeColor: "blue"
}
// Create the source object
// Copy the properties of the source object to the target object
Object.assign(person1, person2);

Try it yourself

Syntax

Object.assign(target, source(s))

Parameter

Return value

Browser support

Object.assign() Is a feature of ECMAScript6 (ES6).

Starting from June 2017, all modern browsers support ES6 (JavaScript 2015):

Object.assign() Not supported in Internet Explorer.