🚀 Master JavaScript Arrow Functions: Syntax, Examples & Best Practices | JavaScript ES6 Tutorial 📌
🔴 *Mastering JavaScript Arrow Functions!* 🚀
Arrow functions were introduced in *ES6* and have revolutionized JavaScript programming with their cleaner syntax and lexical `this`. In this video, we'll break down *Arrow Functions* in detail with examples, use cases, and best practices!
🔹 *Topics Covered:*
✅ What are Arrow Functions?
✅ Basic Syntax & Shortcuts
✅ Single-line vs Multi-line Functions
✅ Implicit & Explicit Returns
✅ Arrow Functions vs Regular Functions
✅ Best Practices & Common Mistakes
📌 *Code Used in the Video:*
```javascript
console.log("Subscribe to letscode");
// Basic Arrow Function
let add = () = 10 + 20;
let subtract = (a, b) = a - b;
console.log(add()); // Output: 30
console.log(subtract(50, 10)); // Output: 40
// Arrow Function with Ternary Operator
let ans = (a, b) = (a - b ? a : b);
console.log(ans(100, 50)); // Output: 100
// Arrow Function with Default Parameter
var printName = (name) = {
name = "Radha";
if (name) {
console.log("I am " + name);
} else {
console.log("I have no name");
}
};
printName(); // Output: I am Radha
// Using Arrow Functions with Array.map()
let arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
let newArr = arr.map((el) = el + 2);
console.log(arr); // Original array remains unchanged
console.log(newArr); // New array with updated values
// Arrow Function with Multiple Parameters
var printDetails = (name, a, b, c) = {
if (name) {
console.log("I am " + name);
console.log(c);
} else {
console.log("I have no name");
console.log(b);
}
};
printDetails("Youtube", "A", "B", 3);
```
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---
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