[60% Off] Become A Certified Javascript Developer- Practice Tests

The Complete JavaScript Developer Course Exam

Added on January 26, 2026 IT & Software 2 min read

What you’ll learn

• Basic of JavaScript application.
• How to create JavaScript application.
• How JavaScript application Work.
• Developing independent components with Storybook.

Requirements

• General knowledge of how the a programs works
• A basic understanding of JavaScript (variables
• functions
• objects
• arrays
• if statements)
• General knowledge of how the web works is recommended but not a must-have
• JavaScript knowledge is required!

Description

IMPORTANT: This course contains Practice Tests only. It does not contain video tutorials. These tests are designed to assess your JavaScript knowledge and prepare you for technical interviews and certifications.

JavaScript is the language of the web. But do you really know how it works?

You might know how to write a function or create a loop. But can you explain Closures? Do you understand the “this” keyword in different contexts? Can you spot a Hoisting issue before it breaks your code?

Many developers rely on frameworks like React or Vue without fully mastering the underlying language. This leads to bugs, “spaghetti code,” and failure in technical interviews. Welcome to the Ultimate JavaScript Knowledge Check.

In this course, we strip away the frameworks and focus on pure, vanilla JavaScript. Whether you are preparing for a certification (like the JSE) or a Front-End Developer interview, these tests will expose your weak spots and help you fix them.

What to expect in this course:
This course consists of 3 Full-Length Practice Tests covering modern JavaScript (ES6+).

• The Core Fundamentals. (Variables, Data Types, Type Coercion, Functions, and Scope).

• DOM Manipulation & Events. (Selecting elements, Event Bubbling vs Capturing, Form handling, and Local Storage).

• Advanced Concepts & ES6+. (Promises, Async/Await, OOP, Prototypes, Destructuring, Modules, and the Spread Operator).

Topics covered in these questions:

• Modern Syntax: ES6, ES7, and beyond (Arrow functions, Let/Const).

• Asynchronous JavaScript: Callbacks, Promises, and Async/Await.

• Object-Oriented Programming: Classes, Prototypes, and Inheritance.

• The “Tricky” Parts: Closures, Hoisting, the Event Loop, and this.

• Data Structures: Arrays, Sets, Maps, and JSON.

• Error Handling: Try/Catch blocks and Debugging logic.

Why take these Practice Tests?

1. Stop Guessing: Don’t assume you know the answer. Test it.

2. Detailed Explanations: We provide clear, in-depth explanations for every question. We explain why the correct answer works and why the code in the other options fails.

3. Interview Readiness: These questions are modeled after real technical screening questions used by top tech companies.

Who is this course for?

• Junior Web Developers preparing for job interviews.

• React/Angular/Vue Developers who want to strengthen their core JavaScript skills.

• Students preparing for JavaScript certifications.

What does this course offer you?

• 3 Practice Tests: 20 high-quality questions per test, timed at 30 minutes.

• Focus on Logic: We test your ability to read code and predict the output.

• Instant Feedback: Identify your weak areas (e.g., “I need to study Promises more”).

• Lifetime Access: Retake the tests as your skills improve.

Don’t let a tricky JavaScript question cost you a job offer.
Enroll today, validate your skills, and become a Certified JavaScript Developer