A more popular programming language than JavaScript does not exist and is unlikely to appear in the foreseeable future. A company of any size and in any industry requires JavaScript expertise, at the very least, to maintain its Internet presence. Web development, in general, is expanding and evolving at a quick pace. On the other hand, a JavaScript specialist is responsible for the appearance and usefulness of an Internet resource. As a result, we are confident that the questions below will be beneficial to you.
- What’s difference between undefined and null?
- What does the && operator do?
- What does the || operator do?
- 4. What is the DOM?
- How to evaluate multiple expressions in one line?
- What are Higher Order Functions?
- What are the falsy values in JavaScript?
- What is the usage of Function.prototype.bind?
- How to check if a value is an Array?
- What is AJAX?
- What is NaN? And how to check if a value is NaN?
- How many ways can a function be invoked?
- What are Arrow functions?
- What are Classes?
- What are ES6 Modules?
- What is a Callback function?
- What are Template Literals?
- What are Promises?
- What does the new keyword do?
- Why does typeof null return object? How to check
- What is the Negative Infinity in JavaScript?
- What do you mean by the prompt box in JavaScript?
- What is async/await and how does it work?
- What are Wrapper Objects?
- What is the difference between Implicit and Explicit Coercion?
- What is ECMAScript?
- What are the new features in ES6 or ECMAScript 2015?
- What’s the difference between var, let and const keywords?
- What is the arguments object?
- What does “use strict” do?
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