JavaScript Interview Preparation Course is a complete free roadmap designed to help you master JavaScript from basics to advanced interview-level concepts. Whether you are a beginner starting your coding journey, a frontend developer improving core fundamentals, or a job seeker preparing for placements and interviews, this course is built for you.
In this structured 35-video course, you will learn everything step by step — starting from variables, data types, functions, arrays, and objects, then moving into advanced concepts like execution context, call stack, hoisting, scope, closures, the this keyword, prototypes, and inheritance. You’ll also deeply understand asynchronous JavaScript including callbacks, promises, async/await, event loop, microtasks, and callback queues.
The course also covers important real-world concepts such as debouncing, throttling, currying, memoization, shallow copy vs deep copy, and JavaScript modules. Along with theory, you’ll get interview-focused explanations, tricky output questions, and commonly asked JavaScript interview questions with answers.
This free JavaScript course includes video lectures, notes, examples, and structured learning paths so you can learn efficiently and become confident in JavaScript.
If you want to crack interviews, become a stronger developer, or build a solid programming foundation, this course is the perfect place to start.
Curriculum
- 5 Sections
- 20 Lessons
- Lifetime
- Module 1: JavaScript FundamentalsBuild a strong foundation by learning the core concepts of JavaScript that every developer must know before moving to advanced topics.21
- 1.1Lecture 1 : What happens when Javascript Code runs? [Hinglish]
- 1.2Lecture 1 : What Happens When JavaScript Code Runs? [English]
- 1.3JavaScript Execution – MCQ Quiz4 Questions
- 1.4Lecture 2 : Variables In Javascript ( Var, Let & Const ) [Hinglish]
- 1.5Lecture 2 : Variables In Javascript ( Var, Let & Const ) [English]
- 1.6Lecture 3 : Data Types in JavaScript (Primitive vs Non-Primitive) [Hinglish]
- 1.7Lecture 3 : Data Types in JavaScript (Primitive vs Non-Primitive) [English]
- 1.8Lecture 4 : Type Coercion Explained [Hinglish]
- 1.9Lecture 4 : Type Coercion Explained [English]
- 1.10Lecture 5 : Operators & Comparison in JavaScript [Hinglish]
- 1.11Lecture 5 : Operators & Comparison in JavaScript [English]
- 1.12Lecture 6 : Truthy vs Falsy Values [Hinglish]
- 1.13Lecture 6 : Truthy vs Falsy Values [English]
- 1.14Lecture 7 : Functions in JavaScript (Declaration vs Expression vs Arrow) [Hinglish]
- 1.15Lecture 7 : Functions in JavaScript (Declaration vs Expression vs Arrow) [English]
- 1.16Lecture 8 : Default Parameters & Rest Parameters [Hinglish]
- 1.17Lecture 8 : Default Parameters & Rest Parameters [English]
- 1.18Lecture 9 : Arrays in JavaScript (Important Methods) [Hinglish]
- 1.19Lecture 9 : Arrays in JavaScript (Important Methods) [English]
- 1.20Lecture 10 : Objects in JavaScript (Important Methods) [Hinglish]
- 1.21Lecture 10 : Objects in JavaScript (Important Methods) [English]
- Module 2: Core JavaScript ConceptsMaster the most important concepts frequently asked in interviews such as execution context, hoisting, closures, scope, and prototypes.0
- Module 3: Asynchronous JavaScriptUnderstand how JavaScript handles asynchronous operations using callbacks, promises, async/await, event loop, and queues.0
- Module 4: Advanced JavaScriptLearn modern and advanced JavaScript techniques used in real-world applications and mid-level developer interviews.0
- Module 5: Real Interview PreparationPractice tricky output questions and commonly asked JavaScript interview questions to become job-ready with confidence.0
