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What is Scope in Javascript Explained + Examples | JavaScript Scope Types: Global vs Local vs Block
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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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If you have any questions or topics you want us to cover, drop a comment below! Don't forget to like, share, and subscribe for more videos.
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#JavaScript #JavaScriptTutorial #JavaScriptScope #WebDevelopment #Coding #Programming #LearnJavaScript
- 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
Recommended videos,
All Major Feature Selection Methods in Machine Learning Explained
What are Webhooks and How to Use Them | Webhook vs API
What is API Gateway and How it Works
What is OSI Model in Computer Network | 7 Layers of OSI Model Explained
All SQL Fundamentals Explained in 10 Minutes | Learn SQL Basics for Beginners
If you have any questions or topics you want us to cover, drop a comment below! Don't forget to like, share, and subscribe for more videos.
🔔 Don't forget to subscribe and hit the notification bell to stay updated on our latest tutorials and tips
#JavaScript #JavaScriptTutorial #JavaScriptScope #WebDevelopment #Coding #Programming #LearnJavaScript
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