JavaScript Syntax

How to use functions

Understanding the core concepts and implementation patterns of functions in JavaScript. Practice with 12 interactive exercises to master the syntax.

Introduction to functions

In JavaScript, functions is a fundamental concept used to manage logic and data flow. Mastery of this topic is essential for building robust and scalable applications.

Syntax Example

// JavaScript functions Example
function greet(name) {
  return "Hello " + name;
}

Practice functions Now View All JavaScript Topics

Available Practice Modules

beginner functions Exercises

intermediate functions Exercises

advanced functions Exercises

Learning Path

Mastering functions is a key step in your journey to becoming a proficient JavaScript developer. Combine this with other core topics like variables, arrays, objects to build a complete mental model of the language. Learn2Code provides the interactive platform to turn knowledge into muscle memory.