JavaScript Interview Questions and Answers

Below is a collection of commonly asked JavaScript Interview questions and answers. The JavaScript interview questions and answers are brief and precise. 

1. What is JavaScript?

JavaScript is a scripting language. The language is distinct from Java. It is a cross-platform, object-based, lightweight language. There is a lot of client-side validation that uses it. The JavaScript code must be translated for the web browser by the JavaScript Translator, which is built within the browser.

2. List a few JavaScript features.

JavaScript has a number of features, including,

  • Interpreted programming language
  • Lightweight
  • Beneficial for network-centric applications
  • Open source Cross-platform

3. Who created JavaScript, and what was its original name?

Programmer for Netscape Brendan Eich is the author of JavaScript. In the month of September 1995, Brendan Eich created this brand-new scripting language in only 10 days. When it first debuted, JavaScript was known as Mocha. Following then, it was known as Live Script and then JavaScript.

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