24-arrow-functions

Lesson 24: Arrow functions

Concise function syntax with lexical this.

What you'll learn

• (a, b) => a + b — implicit return for single expressions
• x => x * 2 — single param needs no parens
• () => { ... } — block body needs explicit return
• arrows have no own this, arguments, or new

Example

See examples/.

Exercise

Convert 3 regular functions to arrow functions.