JavaScript Alphabet Pattern 27

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 97 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Alphabet Pattern 27

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

example.html

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<!DOCTYPE html>
<html>
 <head>
  <style>
   div{ 
    display: inline-block;
    text-align: center;
    width: 18px;
   }
  </style>
 </head>
<body>

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

💻 Testing the Program

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

Output

    A
   A B
  A B C
 A B C D
A B C D E

🧠 How the Program Works

Let's break down the logic behind the code:

var i, j, k;: This declares three variables i, j, and k that will be used as loop counters.
for(i=65; i<=69; i++): This outer loop runs from i = 65 to 69. These values correspond to the ASCII codes of uppercase English letters 'A' to 'E'.
{: The opening curly brace marks the beginning of the outer loop's block.
for(j=69; j>i; j--): This nested loop runs from j = 69 to one less than the value of i. The purpose of this loop is to print spaces before the characters.
document.write("  ");: This line writes two non-breaking space entities to the document. These spaces create an indentation effect, making the pattern look like a pyramid.
for(k=65; k<=i; k++): Another nested loop runs from k = 65 to the current value of i. This loop prints the characters.
document.write("<div>"+String.fromCharCode(k)+"</div>");: This line writes a <div> element to the document containing the character corresponding to the current value of k (ASCII code) converted using String.fromCharCode(k).
document.write("<br>");: After each row of characters is printed, this line writes a <br> element to the document to move to the next line.
}: The closing curly brace marks the end of the outer loop's 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!