JavaScript Alphabet Pattern 8

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 60 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Alphabet Pattern 8

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

example.html

Copied

<!DOCTYPE html>
<html>
<body>

<script>
var i, j;
for(i=65; i<=69; i++)
{ 
 for(j=69; 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

EDCBA
EDCB
EDC
ED
E

🧠 How the Program Works

Let's break down the logic behind the code:

Variable Declaration: Two variables i and j are declared using the var keyword. These variables will be used as loop counters.
Outer Loop (i Loop): The outer for loop is set up with an initial value of i as 65, a condition to continue as long as i is less than or equal to 69, and an increment of i by 1 in each iteration.
Inner Loop (j Loop): Inside the outer loop, there is another for loop, this time using variable j. It is set up with an initial value of j as 69, a condition to continue as long as j is greater than or equal to the current value of i, and a decrement of j by 1 in each iteration.
Character Printing: Inside the inner loop, the program uses the document.write() method to display characters. The character is determined using the String.fromCharCode(j) function, which converts the ASCII value j to its corresponding character. As j decrements from 69 to i, the characters printed will change accordingly.
Line Break: After the inner loop finishes, a line break (<br>) is printed using document.write() to move to the next line.
Iteration and Output: The outer loop continues to iterate, and for each value of i, the inner loop generates a sequence of characters and prints them 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!