JavaScript Alphabet Pattern 12

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 72 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Alphabet Pattern 12

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

example.html

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<!DOCTYPE html>
<html>
<body>

<script>
var i, j;
for(i=65; i<=69; i++)
{
 for(j=69; j>=i; j--)
  document.write(String.fromCharCode(i));
 document.write("<br>");
}
</script>
</body>
</html>

💻 Testing the Program

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

Output

AAAAA
BBBB
CCC
DD
E

🧠 How the Program Works

Let's break down the logic behind the code:

<script> tag: This is an HTML script tag that encloses the JavaScript code.
var i, j;: Declares two variables i and j to be used as loop counters.
for(i=65; i<=69; i++): This is an outer for loop that initializes i to 65 and continues as long as i is less than or equal to 69. In each iteration, i is incremented by 1.
Inner Loop (for(j=69; j>=i; j--)): This is a nested for loop within the outer loop. It initializes j to 69 and continues as long as j is greater than or equal to the current value of i. In each iteration, j is decremented by 1.
document.write(String.fromCharCode(i));: Inside the inner loop, this line writes the character represented by the current value of i to the document. String.fromCharCode(i) converts the numeric ASCII value i into a character.
document.write("<br>");: After the inner loop completes for a given value of i, this line writes an HTML line break (<br>) to the document. This causes the next iteration's characters to be displayed on a new line.
Outer Loop Increment: After the inner loop completes for the current value of i, the outer loop's counter i is incremented by 1, and the process continues for the next value of i.
The entire process repeats for i values from 65 to 69, generating a pattern where characters are repeated in descending order and each set of characters is displayed on a new line.

💯 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 alphabet 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!