Essential ES6 Features for 2024

Published on 2023-11-20

Essential ES6+ Features

JavaScript has evolved significantly. Here are some features you should be using.

Destructuring makes it easy to extract values from arrays or properties from objects.

Source Code

const user = { name: 'John', age: 30 };
const { name, age } = user;

Spread syntax (...) allows an iterable such as an array expression or string to be expanded.

Source Code

const arr1 = [1, 2];
const arr2 = [...arr1, 3, 4]; // [1, 2, 3, 4]

Arrow functions provide a concise syntax for writing function expressions.

Source Code

const add = (a, b) => a + b;