JavaScript Alphabet Pattern 5

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 491 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Alphabet Pattern 5

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

💻 Testing the Program

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

Output

ABCDE
ABCD
ABC
AB
A

🧠 How the Program Works

Let's break down the logic behind the code:

var i, j;: This declares two variables i and j to be used as loop counters.
for(i=69; i>=65; i--): This outer loop initializes the variable i to 69 and decrements it by 1 in each iteration until it reaches 65. This loop controls the rows of the pattern.
for(j=65; j<=i; j++): This inner loop initializes the variable j to 65 and increments it by 1 in each iteration until it becomes greater than or equal to the value of i. This loop controls the characters printed in each row.
document.write(String.fromCharCode(j));: Inside the inner loop, this line converts the ASCII value represented by the variable j into a character using the String.fromCharCode() function and then writes that character to the document. Essentially, it prints characters in the range from 'A' (ASCII value 65) to the current value of i.
document.write("<br>");: After the inner loop completes for each value of i, this line writes an HTML line break (<br>) to the document. This creates a new line for the next row of characters in the pattern.

💯 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!