JavaScript Number Pattern 29

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 279 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Number Pattern 29

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

example.html

Copied

<!DOCTYPE html>
<html>
<body>

<script>
var i, j, k;
for(i=1; i<=5; i++)
{
 for(j=1; j<=5; j++)
 {
  if(j <= i)
   document.write(j);
  else
   document.write("&nbsp;&nbsp;");
 }
 for(k=5; k>=1; k--)
 {
  if(k > i)
   document.write("&nbsp;&nbsp;");
  else
   document.write(k);
 }
 document.write("<br>");
}
</script>
</body>
</html>

💻 Testing the Program

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

Output

🧠 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=1; i<=5; i++): This is the outer loop that iterates from i equal to 1 to i equal to 5. This loop controls the rows of the pattern.
Inside the outer loop, there are two nested loops:
1. for(j=1; j<=5; j++): This is the inner loop that iterates from j equal to 1 to j equal to 5. This loop controls the left part of each row.
2. for(k=5; k7gt;=1; k--): This is another inner loop that iterates from k equal to 5 to k equal to 1. This loop controls the right part of each row.
Inside the j loop, there's an if statement:
1. if(j <= i): This condition checks if the value of j is less than or equal to the value of i. If true, it prints the value of j using document.write(j);.
2. else: If the condition is false, it prints two non-breaking space entities (  ) to create a visual gap.
Inside the k loop, there's another if statement:
1. if(k > i): This condition checks if the value of k is greater than the value of i. If true, it prints two non-breaking space entities (  ) to create a visual gap.
2. else: If the condition is false, it prints the value of k using document.write(k);.
After both inner loops, document.write("<br>"); is used to insert a line break, creating a new row in the pattern.
The outer loop continues until i reaches 5, generating a total of 5 rows in the pattern.
The program completes execution.

💯 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 number 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!