In the world of JavaScript, higher-order functions are like superheroes with extraordinary powers. They have the ability to manipulate other functions, treating them as first-class citizens. With higher-order functions, you can write more concise, expressive, and reusable code, unlocking a new level of programming efficiency and elegance.
At the heart of higher-order functions lie two key concepts: functions that take other functions as arguments, and functions that return new functions. By embracing these powerful constructs, you can tap into a world of possibilities, from creating custom iterator functions to implementing advanced techniques like currying and function composition.
Let’s dive in and explore the magic of higher-order functions through practical examples.
1. The Array Methods
JavaScript’s array methods are a prime example of higher-order functions in action. These methods accept callback functions as arguments, allowing you to perform operations on each element of the array with ease.
const numbers = [1, 2, 3, 4, 5];
// map: Transform each element of…
