Array Methods

1What Are Array Methods?✨

Array methods are built-in functions in JavaScript that allow you to manipulate and interact with arrays easily. They help you perform actions like transforming or filtering data in a concise way!

2Why Learn Array Methods?🎯

• ✓ Simplifies code and enhances readability
• ✓ Allows for efficient data handling
• ✓ Makes coding tasks easier and faster
• ✓ Essential for working with lists and collections

3Using map() Method💡

The map() method creates a new array by applying a function to each element of the original array. It's perfect for transforming data.

4Example:🚀

const numbers = [1, 2, 3, 4];
const doubled = numbers.map(num => num * 2);
console.log(doubled); // Output: [2, 4, 6, 8]

5Using filter() Method🔍

The filter() method creates a new array with all elements that pass a specified test. It's great for selecting specific data.

6Example:⭐

const ages = [12, 18, 24, 30];
const adults = ages.filter(age => age >= 18);
console.log(adults); // Output: [18, 24, 30]

7Using forEach() Method🧩

The forEach() method executes a provided function once for each array element. It's useful for performing actions without creating a new array.

8Example:🎈

const fruits = ['apple', 'banana', 'cherry'];
fruits.forEach(fruit => console.log(fruit));
// Output: apple
//         banana
//         cherry

9What You'll Build This Grade✨

• ✓ Interactive applications that use data transformations
• ✓ Data-driven games with filtering features
• ✓ Dynamic web pages that display user-generated lists
• ✓ Projects that utilize various array manipulations