Native Objects And Host Objects In JavaScript

What is the difference between native objects and host objects in JavaScript?

  Shubham Verma      September 5, 2021


Native Objects And Host Objects In JavaScript


Native Objects And Host Objects In JavaScript

In this article, we will learn about the Native Objects And Host Objects and What is the difference between native objects and host objects? This topic is very much common in the interviews perspectives. I experienced this question so many times in the JavaScript interviews.

Native Objects:


Those objects which are the built-in objects of JavaScript is called the native objects. Object in an ECMAScript implementation whose semantics are fully defined by this specification rather than by the host environment. Native objects are also called Built-in Objects, These objects are provided by Javascript.

Ex: Objects, Date, String methods, Math, parseInt, etc.

Host Objects:


Host objects are supplied by other environment through a connection. The Host Objects are can not be same always because of the environment. Any object which is not native is a host object, basically Host Objects are provided by the browser environment.

Ex: window, document, location, history, XMLHttpRequest, setTimeout, getElementsByTagName, querySelectorAll, DOM nodes etc.



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