JavaScript ES6 (ECMAScript 2015) introduced a ton of new features that modernize the language. Let's dive into some key highlights!

🔥 New Features in ES6

📌 Let & Const

  • Block-scoped variables with let and const
  • Avoids issues with var (e.g., hoisting, redeclaration)
let x = 10;
const y = 20;
let_const

🎯 Arrow Functions

  • Concise syntax for function expressions
  • Preserves this context from outer scope
const add = (a, b) => a + b;
arrow_function

📦 Modules

  • import and export for modular code
  • Organize code across files and projects
// math.js
export function square(x) { return x * x; }

// main.js
import { square } from './math.js';
modules

🧱 Classes

  • Simplified object-oriented programming
  • Uses class keyword and constructor
class Person {
  constructor(name) {
    this.name = name;
  }
}
classes

📚 Recommended Reading

Want to explore more? Check out our ES6 Advanced Topics guide for deeper insights!