JavaScript Arrow Functions

Arrow Function Syntax

Shorter way to write functions.

// Regular function
function add(a, b) {
  return a + b;
}

// Arrow function
const add = (a, b) => a + b;

When to Use

Use arrow functions for:

• Callbacks
• Array methods
• Short functions

Don't use for:

• Methods (this binding issues)
• Constructors

Key Takeaway

Arrow functions are shorter. No this binding. Use for callbacks and short functions. Modern JavaScript standard.