JavaScript: Scope

Learn about the scope options for JavaScript variables, including global, local, and block scope.

Introduction

• Learn how to properly scope your variables
• Course prerequisites

1. Introduction to Variable Scope

• Setup for this course
• What is scope in JavaScript?
• What are closures?
• The different types of scope
• Hoisting explained

2. Global Variables

• What are global variables?
• Challenge: Define global variable
• Solution: Define global variable

3. Local Variables

• What are local variables?
• Challenge: Define local variable
• Solution: Define local variable

4. Block-Scoped Variables

• What are block-scoped variables?
• Explore block-scoped variables with code
• Challenge: Define let/const variables
• Solution: Define let/const variables

Conclusion

• JavaScript strict mode
• Next steps