6.2 Arrow Method

6.2 Arrow Method

// typical method
function powerTwo(num) { return num * num; }

// arrow method
let powerTwo = (num) => num * num;

Structure

const let methodName = (Parameter1, Parameter2, ...) => { /* */ };
// note: if you don't use brackets, it is implied that whatever comes after the 
// arrow is something you want to return.

1. They are anonymous.
• If something breaks, you won’t be told where things went wrong.

2. No self-referencing
• If your method needs to refer to itself at some point (called Recursion), it’s not possible with arrow methods.

Practice