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JavaScript Essentials
Beginner Programming Languages

JavaScript Essentials

The language of the web. From DOM manipulation to modern ES6+, async/await, and Node.js fundamentals.

5 modules 10 lessons 4 h 250 questions
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Course content

1 JS Fundamentals 4 lessons · 42 min
1 JS Fundamentals: Variables, Types, and Primitives 10:00 2 Control Flow & Loops 10:00 3 Functions & Closures 10:30 4 Arrays & Objects 11:00
Practice · 0 of 50 questions Practice →
2 DOM & Browser APIs 2 lessons · 21 min
5 DOM Manipulation 10:00 6 Events & Browser APIs 11:00
Practice · 0 of 50 questions Practice →
3 ES6+ Features 2 lessons · 21 min
7 ES6+ Modern Syntax 10:30 8 Error Handling & Debugging 10:30
Practice · 0 of 50 questions Practice →
4 Async JavaScript 1 lesson · 12 min
9 Async JavaScript 12:00
Practice · 0 of 50 questions Practice →
5 Prototypes & OOP 1 lesson · 12 min
10 Prototypes & OOP 11:30
Practice · 0 of 50 questions Practice →

Tips

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Functional Arrow Functions & `this` Why arrow functions don't have their own `this` Functional Destructuring Assignment Unpack arrays and objects in one clean line Functional Spread vs Rest Operators Same syntax, opposite purposes Functional Optional Chaining & Nullish Coalescing Safely access nested properties without crashes