JavaScript Alphabet Pattern 3

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 138 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Alphabet Pattern 3

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=i; j<=69; 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

E
DE
CDE
BCDE
ABCDE

🧠 How the Program Works

Let's break down the logic behind the code:

var i, j;: This line declares two variables i and j that will be used as loop counters.
for(i=69; i>=65; i--): This is the outer loop that initializes i to 69 and runs as long as i is greater than or equal to 65. It decrements i by 1 in each iteration.
Inside the outer loop, we have a nested loop:
- for(j=i; j<=69; j++): This is the inner loop that initializes j to the current value of i and runs as long as j is less than or equal to 69. It increments j by 1 in each iteration.
Inside the inner loop, we have the following line:
- document.write(String.fromCharCode(j));: This line converts the current value of j into a character using the String.fromCharCode method and then outputs that character using the document.write method.
After the inner loop completes, the following line is executed to add a line break:
- document.write("<br>");: This line adds a line break (HTML line break tag) to the output, causing the characters in the next iteration of the outer loop to appear on a new line.
The outer loop continues its iterations until i becomes less than 65, at which point the entire pattern has been generated.

💯 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!