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Object() constructor

The Object creates an object wrapper for the given value.

  • If the value is null or undefined, it will create and return an empty object.
  • Otherwise, it will return an object of a Type that corresponds to the given value.
  • If the value is an object already, it will return the value.

When called in a non-constructor context, Object behaves identically to new Object().

Syntax

new Object()
new Object(value)

Parameters

value

Any value.

Examples

Creating a new Object

let o = new Object()
o.foo = 42

console.log(o)
// Object { foo: 42 }

Using Object given undefined and null types

The following examples store an empty Object object in o:

let o = new Object()

let o = new Object(undefined)

let o = new Object(null)

Specifications

Specification
ECMAScript Language Specification
# sec-object-constructor

Browser compatibility

Desktop Mobile Server
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet Deno Node.js
Object
1
12
1
3
3
1
1
18
4
10.1
1
1.0
1.0
0.10.0

See also

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/Object

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Last Updated 2022-04-28T06:04:39Z