Js Higher Order Functions — Free Javascript Tutorial

Learn Js Higher Order Functions in Javascript with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Js Higher Order Functions — Free Javascript Tutorial

Learn Js Higher Order Functions in Javascript with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

✓ 100% Free ✓ No Login Needed ✓ NCERT / CBSE Aligned ✓ Download as PDF

TL;DR: Learn Js Higher Order Functions in Javascript with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated

🤖 Stuck on any question? Ask Syllab's free AI Tutor for a step-by-step explanation — instant, unlimited, no login.

Js Higher Order Functions in Javascript

A Higher-Order Function (HOF) either takes a function as an argument OR returns a function (or both).

Examples of built-in HOFs: `.map()`, `.filter()`, `.reduce()`, `.sort()`, `.forEach()`, `addEventListener()`.

Currying: transforming a function with multiple arguments into a sequence of functions with one argument each.

Function composition: `const compose = (f,g) => x => f(g(x))` — apply g first, then f.

Learn Js Higher Order Functions step by step with Syllab's free interactive Javascript tutorial — runnable code examples, practice exercises and instant AI feedback, all free with no signup. Explore the full Javascript course →