JavaScript: Object Object

Object is the value of the property key "Object" of the Global Object .

console.log( window.Object === Object );

Type

Type of Object is a function.

console.log( typeof Object === "function" );

Parent

Parent of Object is Function.prototype.

console.log( Reflect.getPrototypeOf ( Object ) === Function.prototype );

Purpose

Purpose of Object is:

• To convert primitive value (such as string, number, boolean) to a object. (by Object(…))
• Used as a namespace to hold general purpose methods for working with objects. For example, Object.isExtensible(…).
• Holds the property key "prototype". The value of Object.prototype is the root parent object of all standard objects. (so they inherit useful methods.) [see Prototype and Inheritance]

For tutorial, see Object Overview .

Object Consructor

Object Constructor

Properties

• prototype

• create
• assign

• getPrototypeOf
• setPrototypeOf

• getOwnPropertyDescriptor
• getOwnPropertyDescriptors
• defineProperty
• defineProperties

• getOwnPropertyNames
• getOwnPropertySymbols
• keys
• entries
• values
• fromEntries

• is
• isExtensible
• isFrozen
• isSealed

• preventExtensions
• freeze
• seal