ES6 Plus Features and Modules
Continue your JavaScript Tutorial learning path with hands-on explanation, code practice, and quiz.
Course
JavaScript Tutorial
Estimated Time
8 min
Progress
23%
Track Position
17 / 73
Lesson Overview
Simple Explanation
Modern JS me let/const, arrow functions, destructuring, spread/rest aur template literals standard tools hain. Modules code ko reusable files me split karte hain using import/export.
Code Explanation
Named export multiple members deta hai; default export single primary value deta hai.
Output Description
Modular code cleaner aur maintainable hota hai.
Practice Exercise
Ek util module banao aur do functions import karke use karo.
Extra Explanation
Why This Matters
ES6 Plus Features and Modules is core to dynamic behavior. Strong fundamentals here help you build forms, API flows, and interactive UI with confidence.
Real-World Workflow
Complex features are usually split into small functions, then verified through focused logging and tiny test cases.
Common Mistakes to Avoid
Avoid uncontrolled globals, weak error handling, and ignored async states. Define clear input-output expectations for each function.
Example + Live Practice
// utils.js
export const add = (a, b) => a + b;
export const sub = (a, b) => a - b;
export default function multiply(a, b) {
return a * b;
}
// app.js
import multiply, { add, sub } from "./utils.js";
const user = { name: "Ali", skills: ["JS", "Node"] };
const { name, skills } = user;
const allSkills = [...skills, "React"];
console.log(name + " knows " + allSkills.join(", "));
console.log(add(2, 3), sub(7, 2), multiply(3, 4));Try It Yourself
Test Your Knowledge
Quiz Coming Soon
Quiz for this lesson is not added yet.
Save Your Work
Lesson ke end par apna code save karein. Dashboard me aap kabhi bhi is saved code ko dobara dekh sakte hain.