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JavaScript MCQs – Multiple Choice Questions and Answers – Part 6

Multiple choice questions and answers (MCQs) on JavaScript to prepare for exams, tests, and certifications. These questions are taken from

Arrow functions were initiated with ES6 as a new syntax for writing JavaScript functions. They save developers time and simplify

Node.js is a cross-platform library and runtime environment for running JavaScript applications outside of the browser. It is a free

In this tutorial, we are going to see the difference between =, == and === in javascript. = is used

JSON stands for JavaScript Object Notation. JSON objects are used to transfer data between server and client, JSON is easy

You can add a Javascript button to go back to the previous page. When the user clicks on the button,

In this tutorial, we are going to see different methods to detect a mobile device with JavaScript. Sometimes it is

In this tutorial, we are going to see how to close the current tab in a browser window with JavaScript.

Sometimes we need to force the input of text in uppercase in a text field so that the user can