🔁 ES6 map() Method

The map() method creates a new array by applying a function to each item of an existing array.

✔ Does not modify the original array
✔ Returns a new array

🧠 Basic Syntax

🔍 Example: Basic map()

🎯 Example: Using map() with Strings

🧩 map() in React (Very Important)

React commonly uses map() to render lists dynamically.

Example:

✔ Each element needs a unique key prop in React when rendering lists.

🏷️ Using map() with Objects

Rendering in React:

🔧 map() + Arrow Function + JSX Example

📌 Common Mistakes

❌ Missing key:

✔ Correct way:

🎉 Summary