JavaScript Number Pattern 11

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 400 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Number Pattern 11

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

example.html

Copied

<!DOCTYPE html>
<html>
<body>

<script>
var i, j;
for(i=5; i>=1; i--)
{
 for(j=1; j<=i; j++)
  document.write(i);
 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:

<script> tag: This indicates the start of a JavaScript code block embedded in an HTML document.
var i, j;: Declares two variables i and j that will be used as loop counters in the following loops.
for(i=5; i>=1; i--): This is the outer loop that initializes i to 5, runs as long as i is greater than or equal to 1, and decrements i by 1 in each iteration. This loop controls the number of rows in the pattern.
Inner Loop:
- for(j=1; j<=i; j++): This is the inner loop that initializes j to 1, runs as long as j is less than or equal to the current value of i, and increments j by 1 in each iteration. This loop controls the number of times the current value of i should be printed in the same row.
- document.write(i);: Inside the inner loop, this line writes the current value of i to the document. Since the inner loop runs i times, this will print the value of i that many times on the same line.
document.write("<br>");: After the inner loop completes, this line writes an HTML line break <br> to the document. This causes the output to move to the next line, creating the pattern effect.
After both loops complete for a given value of i, the outer loop decrements i by 1, and the process repeats until i becomes less than 1, which ends the pattern generation.

💯 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!