JS: Object Object

By Xah Lee. Date: . Last updated: .

Object is the value of the property key "Object" of the global object. [JS: the Global Object]

console.log ( window["Object"] === Object ); // true


Object is a function.

[see JS: Value Types]

// type of Object
console.log ( typeof Object === "function" ); // true


Parent of Object is Function.prototype.

// parent of Object object
console.log ( Object.getPrototypeOf ( Object ) === Function.prototype ); // true


Purpose of Object is:

  1. To convert primitive value (such as string, number, boolean) to a object. (by Object(…))
  2. Used as a namespace to hold general purpose methods for working with objects. For example, Object.isExtensible(…).
  3. 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 JS: Prototype and Inheritance]

For tutorial, see JS: Object Overview.

Object Consructor

JS: Object Constructor

See also: JS: Object Literal Expression



ECMAScript 2015 §Fundamental Objects#sec-object-objects

JS Object and Inheritance

  1. Object Overview
  2. Object Type
  3. Prototype and Inheritance
  4. Create Object
  5. Object Literal Expression
  6. Create Object with Parent X
  7. Get/Set Prototype
  8. Prevent Adding Property
  9. Determine Type of Object
  10. Clone Object
  11. Test Object Equality
  12. Add Method to Prototype
  13. Object Object
  14. Object.prototype
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