Javascript Instanceof Operator Example | Instanceof in Javascript

Javascript Instanceof Operator Example | Instanceof in Javascript

Javascript instanceof is an inbuilt operator that tests whether a prototype property of the constructor appears anywhere in the prototype chain of an object.

Javascript instanceof is an inbuilt operator that tests whether a prototype property of the constructor appears anywhere in the prototype chain of an object. The instanceof operator examines the presence of constructor.type in the object‘s prototype chain. The instanceof operator returns the boolean value that indicates if an object is an instance of the particular class.

Javascript Instanceof Operator

The instanceof operator is used to check the type of the object at a run time. The instanceof operator tests a presence of constructor.prototype in the object‘s prototype chain.

It checks the current object and returns true if the object is of the specified object type.

The Left Hand Side (LHS) operand is an actual object being tested to the Right Hand Side (RHS) operand, which is an actual constructor of a class.

javascript javascript instanceof js

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

Javascript Instanceof Operator Example | Instanceof in Javascript

Javascript instanceof is an inbuilt operator that tests whether a prototype property of the constructor appears anywhere in the prototype chain of an object.

What are the differences between the various JavaScript frameworks? E.g. Vue.js, Angular.js, React.js

What are the differences? Do they each have specific use contexts?

Ember.js vs Vue.js - Which is JavaScript Framework Works Better for You

In this article we will discuss full details and comparison of both Ember.js and Vue.js

Grokking Call(), Apply() and Bind() Methods in JavaScript

In this article, we will have a look at the call(), apply() and bind() methods of JavaScript. Basically these 3 methods are used to control the invocation of the function.