Tutorials

JavaScript Star Pattern 8

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 317 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Star Pattern 8

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

example.html

Copied

<!DOCTYPE html>
<html>
<body>

<script>
var i, j, k;
for(i=5; i>=1; i--)
{
 for(j=5; j>=1; j--)
 {
  if(i == j)
   document.write("*");
  else
   document.write("&nbsp;&nbsp;");
 }
 for(k=2; k<=5; k++)
 {
  if(i == k)
   document.write("*");
  else
   document.write("&nbsp;&nbsp;");
 }
 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:

The program starts with defining three variables: i, j, and k. These will be used as loop counters.
The outer loop runs from i=5 down to i=1. This loop controls the number of rows in the output pattern.
Inside the outer loop, there are two nested loops.
The first nested loop (for(j=5; j>=1; j--)) runs from j=5 down to j=1. This loop is responsible for printing characters in the columns before the center alignment.
Inside this loop, there's an if condition: if(i == j). If the current value of i matches the current value of j, a "*" character is printed using document.write("*"). Otherwise, two non-breaking spaces (  ) are printed to create spacing.
The second nested loop (for(k=2; k<=5; k++)) runs from k=2 up to k=5. This loop is responsible for printing characters in the columns after the center alignment.
Inside this loop, there's another if condition: if(i == k). If the current value of i matches the current value of k, a "*" character is printed. Otherwise, two non-breaking spaces are printed.
After the two nested loops, document.write("<br>") is used to insert a line break, moving to the next row.
The outer loop repeats this pattern for each row, gradually reducing the number of characters printed per row.

💯 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 star 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!