For Loop Explained with a Practical Example

In this video, I explain the for loop step by step and show how it works using a practical example.

You’ll learn what a for loop is, how its three parts (initialization, condition, and post-iteration) control execution, and how each iteration is performed. I also compare the for loop with the while loop and explain why the for loop is often considered a more convenient way to express repetition.

To make things concrete, we build a small program that calculates compound interest over multiple years using a for loop. This example demonstrates how values change on each iteration and how loops are used in real programs.

We also cover:

for loop execution order
infinite loops and conditions
breaking out of a loop with break
skipping iterations with continue

Although the examples are shown in JavaScript, this for loop tutorial is language-agnostic, so the concepts apply to most programming languages.

If you’re learning programming basics or looking for a clear for loop for beginners explanation, this video will help you build a strong foundation.

Links:
Introduction to loops -    • Loops Explained for Beginners – How the Wh...  

📌 Chapters:
00:00 Intro and contents
00:22 Definition and structure
04:01 For loop vs while loop
04:56 Compound interest
05:46 Compound interest program
11:02 Outro