The Object.assign function serves the purpose of duplicating the values of all enumerable own properties from one or several source objects to a designated target object. It is important to note that objects are assigned and replicated by reference. The method will return the target object after the operation.
Syntax:
Example
Object.assign(target, sources)
Parameter
target : The target object.
sources : The source object(s).
Return value:
This method returns the target object.
Browser Support:
| Chrome | Yes |
|---|---|
Edge |
Yes |
| Firefox | Yes |
| Opera | No |
Example 1
Example
const object1 = {
a: 1,
b: 2,
c: 3
};
const object3= {
g: 1,
h: 2,
i: 3
};
const object2 = Object.assign({c: 4, d: 5}, object1);
const object4 = Object.assign({g: 34, h: 25}, object3);
console.log(object2.c, object2.d);
console.log(object4.g, object4.h);
Output:
Output
3
5
1
2
Example 2
Example
const object1 = {
a: 11,
b: 12,
c: 33
};
const object2 = Object.assign({c: 4, d: 5}, object1);
console.log(object2.c, object2.d);
Output:
Output
33
5
Example 3
Example
const object1 = {
a: 1,
b: 2,
c: 3
};
const object2 = Object.assign({a: 3,c: 4, d: 5,g: 23,}, object1);
console.log(object2.c, object2.d,object2.g,object2.a);
Output:
Output
3
5
23
1
