Functional Programming in JS

 Functional Programming in JS

Functional programming is a programming paradigm that emphasizes the use of pure functions and immutable data. JavaScript has always had some support for functional programming, but recent updates have made it more popular and easier to use.

Here is an example of using Array.prototype.map() to apply a function to each element in an array:

const numbers = [1, 2, 3, 4, 5];

const squaredNumbers = numbers.map(n => n * n);

console.log(squaredNumbers); // [1, 4, 9, 16, 25]

In this example, we use Array.prototype.map() to apply a squaring function to each element in an array of numbers.