JavaScript Alphabet Pattern 9

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 89 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Alphabet Pattern 9

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=65; 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

A
BB
CCC
DDDD
EEEEE

🧠 How the Program Works

Let's break down the logic behind the code:

var i, j;: This line declares two variables i and j without assigning any values to them initially.
for(i=65; i<=69; i++): This is an outer loop that runs for the values of i from 65 (ASCII value of 'A') to 69 (ASCII value of 'E').
{: Beginning of the outer loop's code block.
for(j=65; j<=i; j++): This is an inner loop that runs for the values of j from 65 (ASCII value of 'A') to the current value of i. This means that in each iteration of the outer loop, the inner loop will print the same character (as determined by the current value of i) multiple times.
{: Beginning of the inner loop's code block.
document.write(String.fromCharCode(i));: This line prints the character corresponding to the ASCII value of i using the String.fromCharCode() function. Since i is constant within each iteration of the inner loop, this will print the same character multiple times based on the value of i.
}: End of the inner loop's code block.
document.write("<br>");: This line prints a line break (HTML <br> tag), causing the characters generated in the current iteration of the inner loop to be displayed on a new line.
}: End of the outer loop's code block.

💯 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!