Member-only story
Top 25 JavaScript Interview Questions and Answers

Introduction:
JavaScript is a popular computer language used for web development. Preparing for a JavaScript interview might be difficult espeacially when dealing with its asynchronous nature, the need for an understanding of the Document Object Model (DOM), and its use of functions. . Here’s a list of the top 25 interview questions and answers to help you prepare.
1. What is JavaScript, and how is it different from Java?
Answer: JavaScript is a lightweight, interpreted programming language primarily used for client-side web development. It’s different from Java in that Java is a statically typed, compiled language, while JavaScript is dynamically typed and interpreted.
// JavaScript Example
console.log("Hello, World!");
// Java Example
public class Main {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}
2. Explain the concept of closures in JavaScript.
Answer: A closure is a function that remembers the environment in which it was created, allowing it to access variables from its outer function scope even after the outer function has returned.