JavaScript Number Pattern 20

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 518 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Number Pattern 20

Here`s a program that prints the above number pattern using JavaScript Programming:

example.html

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<!DOCTYPE html>
<html>
<body>

<script>
var i, j, k = 1;
for(i=1; i < 5; i++)
{
 for(j=1; j<=i; j++)
  document.write(k++ + " ");
 document.write("<br>");
}
</script>
</body>
</html>

💻 Testing the Program

When you run the above program, it will print the following output:

Output

🧠 How the Program Works

Let's break down the logic behind the code:

var i, j, k = 1;: This line declares three variables i, j, and k and initializes k with the value 1.
for(i=1; i < 5; i++): This is an outer loop that iterates over the values of i from 1 to 4 (inclusive). Each iteration represents a new row in the pattern.
Inside the outer loop, we have another loop: for(j=1; j<=i; j++): This is an inner loop that iterates over the values of j from 1 to the current value of i. Each iteration of this inner loop represents a column within the current row.
document.write(k++ + " ");: Within the inner loop, this line writes the value of k to the HTML document and then increments k by 1. It also adds a space after the value to separate the numbers within the same row.
document.write("<br>");: After the inner loop completes for a given value of i, this line writes a line break (<br>) to the HTML document, moving to the next line for the next row.
The outer loop continues to the next iteration, and the process repeats until i reaches 4.

💯 Tips for Enhancement:

Explore the versatility of this pattern by adjusting its parameters. Whether you increase or decrease the size, tweak the spacing, or modify the characters used, each change opens up a world of possibilities, allowing you to customize and create your unique visual effects.

✔ Conclusion:

Creating visually appealing patterns is not only a fun endeavour but also a great way to enhance your programming or design skills. We hope this tutorial has inspired you to explore the world of creative coding. Share your creations with us, and let your imagination run wild!

🤗 Closing Call-to-Action:

We'd love to see your unique interpretations of the number pattern. Share your creations in the comments below, and don't hesitate to reach out if you have any questions or suggestions for future tutorials. Happy coding!