You Don't Know JS
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About this app
📚 You Don’t Know JS – (2025–2026 Edition)
You Don’t Know JS (2025–2026 Edition) is a complete academic resource for students who want to study JavaScript in a simple and exam-oriented way. This edition provides a syllabus book, MCQs, and quizzes — everything you need for structured learning and effective revision.
The content is designed in a clear, unit-wise format so that learners can easily understand the topics, prepare step by step, and test their knowledge with practice questions. Whether you are in BS/CS, BS/IT, or software engineering, this resource is built to match your academic needs.
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🎯 Learning Outcomes
✅ Study JavaScript with a complete syllabus book.
✅ Revise each unit with MCQs.
✅ Test your preparation with quizzes.
✅ Learn in a structured and exam-focused style.
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📂 Units & Topics
🔹 Unit 1: Up and Going
Learning JavaScript Basics
Syntax and Grammar
Types and Values
🔹 Unit 2: Scope and Closures
Variable Scope
Lexical Scope
Closures and Their Uses
🔹 Unit 3: This and Object Prototypes
The "this" Keyword
Object Prototypes
Prototype Chains and Inheritance
🔹 Unit 4: Types and Grammar
JavaScript Coercion
Type Coercion
Equality Comparisons
🔹 Unit 5: Async and Performance
Callbacks
Promises
Async-Await
Event Loop and Concurrency
🔹 Unit 6: ES6 and Beyond
New Syntax and Features in ES6
Modules
Arrow Functions
Classes
🔹 Unit 7: Into Programming
Code
Try It Yourself
Operators
Values and Types
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🌟 Why Choose You Don’t Know JS?
📖 Includes a syllabus book for complete study.
📝 Provides MCQs and quizzes for revision.
🎓 Ideal for BS/CS, BS/IT, and software engineering students.
📂 Covers the full JavaScript syllabus in unit-wise format.
---
This app is inspired by the authors:
Marijn Haverbeke, Douglas Crockford, David Herman, Eric Elliott, Michael Fogus, Brenden Eich, Kyle Simpson
📥 Download Now!
Get You Don’t Know JS – (2025–2026 Edition) and make your JavaScript learning simple, clear, and exam-ready. With a syllabus book, MCQs, and quizzes, this edition is the perfect academic companion for students preparing for exams and class tests.
You Don’t Know JS (2025–2026 Edition) is a complete academic resource for students who want to study JavaScript in a simple and exam-oriented way. This edition provides a syllabus book, MCQs, and quizzes — everything you need for structured learning and effective revision.
The content is designed in a clear, unit-wise format so that learners can easily understand the topics, prepare step by step, and test their knowledge with practice questions. Whether you are in BS/CS, BS/IT, or software engineering, this resource is built to match your academic needs.
---
🎯 Learning Outcomes
✅ Study JavaScript with a complete syllabus book.
✅ Revise each unit with MCQs.
✅ Test your preparation with quizzes.
✅ Learn in a structured and exam-focused style.
---
📂 Units & Topics
🔹 Unit 1: Up and Going
Learning JavaScript Basics
Syntax and Grammar
Types and Values
🔹 Unit 2: Scope and Closures
Variable Scope
Lexical Scope
Closures and Their Uses
🔹 Unit 3: This and Object Prototypes
The "this" Keyword
Object Prototypes
Prototype Chains and Inheritance
🔹 Unit 4: Types and Grammar
JavaScript Coercion
Type Coercion
Equality Comparisons
🔹 Unit 5: Async and Performance
Callbacks
Promises
Async-Await
Event Loop and Concurrency
🔹 Unit 6: ES6 and Beyond
New Syntax and Features in ES6
Modules
Arrow Functions
Classes
🔹 Unit 7: Into Programming
Code
Try It Yourself
Operators
Values and Types
---
🌟 Why Choose You Don’t Know JS?
📖 Includes a syllabus book for complete study.
📝 Provides MCQs and quizzes for revision.
🎓 Ideal for BS/CS, BS/IT, and software engineering students.
📂 Covers the full JavaScript syllabus in unit-wise format.
---
This app is inspired by the authors:
Marijn Haverbeke, Douglas Crockford, David Herman, Eric Elliott, Michael Fogus, Brenden Eich, Kyle Simpson
📥 Download Now!
Get You Don’t Know JS – (2025–2026 Edition) and make your JavaScript learning simple, clear, and exam-ready. With a syllabus book, MCQs, and quizzes, this edition is the perfect academic companion for students preparing for exams and class tests.
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What’s new
🚀 New Update of You Don’t Know JS
✨ What’s Inside:
✅ Complete JavaScript syllabus in a structured format
✅ Interactive MCQs & quizzes for quick self-assessment
✅ Clear explanations with examples for exam preparation
🎯 Suitable For:
👩🎓 Students of BSCS, BSIT, & Software Engineering
📘 Beginners learning JavaScript basics & core concepts
💡 Learners preparing for exams with MCQs & quizzes
Start your JavaScript learning journey today with You Don’t Know JS (2025–2026 Edition)! 🚀
✨ What’s Inside:
✅ Complete JavaScript syllabus in a structured format
✅ Interactive MCQs & quizzes for quick self-assessment
✅ Clear explanations with examples for exam preparation
🎯 Suitable For:
👩🎓 Students of BSCS, BSIT, & Software Engineering
📘 Beginners learning JavaScript basics & core concepts
💡 Learners preparing for exams with MCQs & quizzes
Start your JavaScript learning journey today with You Don’t Know JS (2025–2026 Edition)! 🚀
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About the developer
kamran Ahmed
kamahm707@gmail.com
Sheer Orah Post Office, Sheer Hafizabad, Pallandri, District Sudhnoti
Pallandri AJK, 12010
Pakistan
