7 ES6 Features Every JavaScript Developer Should Know

ES6 completely changed how we write JavaScript.

If you’re still using var everywhere… this is for you.

Here are 7 essential ES6 features you should master.

1️⃣ let & const

let name = "John";
const pi = 3.14;

Block-scoped and safer than var.

2️⃣ Arrow Functions

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

Shorter syntax + lexical this.

3️⃣ Template Literals

const greeting =Hello ${name};

Clean string interpolation.

4️⃣ Destructuring

const { name, age } = person;

Cleaner object handling.

5️⃣ Default Parameters

function multiply(a, b = 1) {}

6️⃣ Spread / Rest

const newArray = [...oldArray];

7️⃣ Classes

class Dog extends Animal {}

🎯 Why ES6 Matters

Cleaner code

Less boilerplate

Modern patterns

Industry standard

👉 Full detailed explanation with examples here