JavaScript Object.defineProperties() Method

The Object.defineProperties() method defines new or modifies existing properties directly on an object, and returning the object.

Syntax:

Parameter

Obj: The object on which to define or modify properties.

Props: An object whose own enumerable properties constitute descriptors for the properties to be defined or modified.

Return:

This method reruns an object that was passed to the function.

Browser Support:

Chrome	Yes
Edge	Yes
Firefox	1.5
Opera	Yes

Example 1

const object1 = {};
Object.defineProperties(object1, {
  property1:{
value: 44, }
 });
console.log(object1.property1);

Output:

Example 2

const object1 = {};
Object.defineProperties(object1, {
  property1: {
    value: 142,
    value: 422,
    value: 423,
    },
 property2: {}
});
console.log(object1.property1);

Output:

Example 3

const obj = {};
Object.defineProperties(obj, {
  property1: {
    value: 142,
    value: 422,
    value: 423,
    },
  property2: {
  value: 22,
  value: 12,}
});
console.log(obj.property1,obj.property2);

Output: