Lesson 9
Functions
18 stages
What is a Function?
Write Your First Function
Parameters, Arguments, and Return Values
Return a Value
Trace Function Calls
Return Values Check
Function Expressions and Arrow Functions
Convert to an Arrow Function
Default and Rest Parameters
Default and Rest Parameters
Functions as Values
Pass a Function as an Argument
Scope and Hoisting
Fix the Scope Bug
Build a User Badge
Predict Return Values
Debug Callback Usage
Functions Quiz
Next step
Move forward when you're ready.
Continue with Arrays.