Introduction to Functions in JavaScript – A Beginner’s Guide

This video introduces JavaScript functions, explaining their purpose in making code reusable and organised, and walks through how to create them using function declarations with detailed explanations and practical examples to help you understand how they work in real code. 00:00 Introduction 00:20 What is a Function 00:44 Function Declarations 1:44 Calling a Function 4:45 Function Parameters 11:45 Function Declarations in Action 12:49 Function Declaration Summary Card