JavaScript Alphabet Pattern 1

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 237 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Alphabet Pattern 1

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(j));
 document.write("<br>");
}
</script>
</body>
</html>

💻 Testing the Program

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

Output

A
AB
ABC
ABCD
ABCDE

🧠 How the Program Works

Let's break down the logic behind the code:

var i, j;: Declare two variables i and j to be used in the loops.
for(i=65; i<=69; i++): This is the outer loop that iterates over values of i from 65 to 69 (inclusive). The ASCII value 65 corresponds to the character 'A', and 69 corresponds to the character 'E'.
{: Start of the outer loop block.
for(j=65; j<=i; j++): This is the inner loop that iterates over values of j from 65 to the current value of i. This means that the inner loop will run i - 65 + 1 times.
{: Start of the inner loop block.
document.write(String.fromCharCode(j));: This line converts the current value of j to its corresponding character using the String.fromCharCode() function and then writes that character to the document.
}: End of the inner loop block.
document.write("<br>");: After each iteration of the inner loop, a line break (<br>) is written to the document to move to the next line.
}: End of the outer loop 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!