JavaScript đź’»Interview Questions and Answers

R M Shahidul Islam Shahed
4 min readDec 5, 2023

JavaScript is a versatile and essential programming language that plays a pivotal role in web development, enabling developers to create dynamic and interactive user experiences. As the backbone of client-side scripting, JavaScript is an integral part of modern web applications, allowing for seamless manipulation of HTML, CSS, and the Document Object Model (DOM). In the context of interviews, evaluating a candidate’s proficiency in JavaScript is crucial for assessing their ability to craft efficient, responsive, and feature-rich web solutions. This guide presents a curated set of JavaScript interview questions and answers designed to explore candidates’ knowledge across a spectrum of topics, including language fundamentals, asynchronous programming, event handling, and more. Whether you’re an interviewer looking for insightful questions or a candidate preparing for a JavaScript-focused interview, this resource aims to enhance your understanding of JavaScript and its applications in contemporary web development.

JavaScript Interview Question and Answer

Here are some common JavaScript interview questions along with brief answers:

#1 What is JavaScript?

  • JavaScript is a high-level, interpreted programming language that is widely used for client-side and server-side web development. It enables dynamic, interactive web pages.

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