JavaScript

JavaScript

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Last Update	09/13/2026
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Javascript Basic Intermediate Advanced

Section 1: Getting Started

6Lessons ·
- 1: JavaScript in the Browser and Node.js
  
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- 4: Linking and Loading Scripts on a Page
  
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Section 2: Core Syntax and Types

10Lessons ·
- 14: Tagged Templates
  
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Section 3: Strings and Numbers in Depth

6Lessons ·
- 21: The Intl API for Formatting Numbers and Dates
  
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Section 5: Functions

11Lessons ·
- 33: call, apply, and bind
  
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- 38: Practice Exercise: Building a Debounce and Throttle Utility
  
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Section 6: Objects and Arrays

12Lessons ·
- 48: Object.freeze and Immutability Patterns
  
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- 49: Structured Clone and Deep Copying
  
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- 50: Practice Exercise: Building a Shopping Cart with Array Methods
  
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Section 8: Asynchronous JavaScript

13Lessons ·
- 61: Promise.all, allSettled, race, and any
  
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- 65: AbortController for Cancelling Requests
  
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Section 10: The DOM

11Lessons ·
- 78: Selecting and Traversing DOM Elements
  
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- 79: Manipulating Content and Attributes
  
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- 80: Creating and Removing Elements
  
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- 82: Event Delegation
  
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- 83: Event Bubbling and Capturing
  
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- 86: Working with the Intersection Observer API
  
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Section 11: Browser APIs

11Lessons ·
- 89: Working with Cookies from JavaScript
  
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- 92: The Clipboard API
  
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- 97: The Drag and Drop API
  
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- 98: The File API for Reading Local Files
  
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Section 16: Accessibility for JavaScript Developers

3Lessons ·
- 130: Managing Focus in JavaScript Applications
  
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Section 18: Performance

7Lessons ·
- 135: Understanding Reflow and Repaint
  
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- 138: Lazy Loading and Code Splitting Basics
  
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- 140: Using requestAnimationFrame Effectively
  
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Section 24: Practical Projects

14Lessons ·
- 182: Building a Debounced Search Autocomplete
  
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- 184: Building a Simple Drag-and-Drop Interface
  
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- 186: Building a Basic Weather Widget Using an API
  
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- 190: Building an Image Carousel/Slider
  
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Section 27: Working with Dates and Internationalization

4Lessons ·
- 205: Working with Relative Time Formatting
  
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Section 28: Web Components

4Lessons ·
- 210: Building a Reusable Web Component
  
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Section 29: More DOM and Browser Practice

5Lessons ·
- 213: The Fullscreen API
  
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- 214: The Page Visibility API
  
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Section 30: Build Tooling for Vanilla JavaScript

5Lessons ·
- 216: Understanding Babel and Transpilation
  
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Section 31: More Practice Projects

6Lessons ·
- 222: Building a Markdown Previewer
  
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- 224: Building a Password Strength Meter
  
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Section 36: More Global Functions (MDN Reference)

5Lessons ·
- 246: encodeURIComponent and decodeURIComponent
  
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- 248: isNaN vs Number.isNaN
  
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