What is Scope in Javascript Explained + Examples | JavaScript Scope Types: Global vs Local vs Block
Ever confused about where your variables live in JavaScript? This video breaks down Scope in JavaScript with clear explanations and examples. Learn about:
Global Scope: Variables accessible from anywhere in your code.
Local Scope (Function Scope): Variables only accessible within a function.
Block Scope (Let & Const): Variables limited to specific code blocks (if statements, loops).
Video Walkthrough
0:00 Introduction
0:11 What is JavaScript Scope
0:59 Types of Scope in JavaScript
1:18 JavaScript Scope Example
1:51 What is Global Scope in JS
2:36 Global Scope Example
3:12 Best Practices For Global Scope
3:48 What is Local Scope in JS
4:44 Local Scope Example
4:56 What is Variable Shadowing
5:19 Variable Shadowing Example
5:42 What is Block Scope in JS
6:30 Block Scope Example
7:17 Block Scope vs Local Scope in JS
8:30 Scope Chain in JavaScript Explained
9:35 Best Practices for JavaScript Scope
10:30 Conclusion
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