JavaScript Number Pattern 14

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 315 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Number Pattern 14

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

example.html

Copied

<!DOCTYPE html>
<html>
<body>

<script>
var i, j;
for(i=7; i>=1; i-=2)
{
 for(j=1; j<=i; j++)
  document.write(j);
 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:

<script> tag: This is an HTML tag used to include JavaScript code within an HTML document.
var i, j;: This line declares two variables i and j which will be used as loop counters.
for(i=7; i>=1; i-=2): This is the outer loop that initializes i to 7, runs as long as i is greater than or equal to 1, and decrements i by 2 in each iteration.
Inner loop: The inner loop starts here and runs for each iteration of the outer loop. The inner loop is responsible for printing the sequence of numbers.
for(j=1; j<=i; j++): This is the inner loop that initializes j to 1, runs as long as j is less than or equal to the current value of i, and increments j by 1 in each iteration.
document.write(j);: This line inside the inner loop writes the value of j to the document. As the inner loop iterates, it prints the sequence of numbers from 1 to the current value of i.
document.write("<br>");: After each iteration of the inner loop, this line is executed, which writes a line break (<br>) to the document. This creates a new line after each sequence of numbers.
The inner loop continues to iterate and print numbers until j is no longer less than or equal to the current value of i.
Once the inner loop completes, the outer loop continues with its next iteration, decrementing the value of i by 2.
This pattern repeats until the condition of the outer loop (i>=1) is no longer satisfied.

💯 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!