Arrow Functions

Arrow functions are a concise syntax for writing function expressions in JavaScript, introduced in ES6 (ECMAScript 2015). They provide a shorter syntax compared to traditional function expressions and do not have their own 'this', 'arguments', 'super', or 'new.target' bindings, making them particularly useful for non-method functions and callbacks.

Also known as: fat arrow functions, lambda functions, ES6 arrow functions, => functions, arrow syntax

Why learn Arrow Functions?

Developers should learn arrow functions for writing cleaner, more readable code, especially in functional programming patterns and when working with callbacks in array methods like map, filter, and reduce. They are ideal for scenarios where lexical 'this' binding is desired, such as in event handlers or when defining functions within object methods to avoid 'this' context issues.

Learning Resources

• docs: MDN Web Docs: Arrow Functions
• tutorial: JavaScript.info: Arrow Functions, The Basics
• tutorial: freeCodeCamp: ES6 Arrow Functions in JavaScript
• course: Wes Bos: ES6 for Everyone - Arrow Functions
• video: Traversy Media: JavaScript Arrow Functions