JavaScript: Functions

Explore the different ways of declaring and invoking JavaScript functions, the hidden but powerful "subprograms" that power the backbone of your code.

Introduction

• Why are JavaScript functions essential?
• Using GitHub Codespaces with this course
• Using the exercise files and slides

1. Function Essentials

• Using CodeSwing
• Mechanics of functions
• Expressions
• Arguments
• Hoisting and scope
• Methods
• Return
• Challenge: Creating repeatable data
• Solution: Creating repeatable data

2. Function Patterns

• Arrow functions
• Constructors
• Modules
• Closures
• Recursion
• Asynchronous functions
• Challenge: Social media links
• Solution: Social media links

Conclusion

• Going further