Welcome to the Advanced JavaScript Methods Demo repository!

In this repository, you'll find examples and explanations of three essential methods in JavaScript: map(), filter(), and reduce(). These methods are frequently used by advanced JavaScript developers for various data manipulation tasks.

1. Introduction
2. Map Method
3. Filter Method
4. Reduce Method
5. Running the Examples

JavaScript provides powerful array methods like map(), filter(), and reduce() that allow developers to perform complex operations on arrays efficiently. Understanding how to use these methods is essential for writing clean, concise, and maintainable code.

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

Example:

const numbers = [1, 2, 3, 4, 5];
const doubledNumbers = numbers.map(num => num * 2);
console.log(doubledNumbers); // Output: [2, 4, 6, 8, 10]

The filter() method creates a new array with all elements that pass the test implemented by the provided function. It's useful for selecting elements based on specific criteria.

Example:

const numbers = [1, 2, 3, 4, 5];
const evenNumbers = numbers.filter(num => num % 2 === 0);
console.log(evenNumbers); // Output: [2, 4]

The reduce() method executes a reducer function on each element of the array, resulting in a single output value. It's often used for aggregating data or performing calculations on arrays.

Example:

const numbers = [1, 2, 3, 4, 5];
const sum = numbers.reduce((accumulator, currentValue) => accumulator + currentValue, 0);
console.log(sum); // Output: 15

To run the examples provided in this repository, follow these steps:

1. Clone this repository to your local machine using Git.
2. Open a terminal or command prompt and navigate to the cloned directory.
3. Run the example scripts using Node.js.