JavaScript Number Pattern 4

Posted in JavaScript Tutorial

Updated on Jan 10, 2024

By Mari Selvan

👁️ 574 - Views

⏳ 4 mins

💬 1 Comment

Photo Credit to CodeToFun

JavaScript Number Pattern 4

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

example.html

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<!DOCTYPE html>
<html>
<body>

<script>
var i, j;
for(i=1; i<=5; i++)
{
 for(j=5; 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:

<!DOCTYPE html>: This declaration defines the document type and version of HTML being used.
<html>: The start of the HTML document.
<body>: The start of the document's body section, where the content visible to the user is placed.
<script>: This tag is used to embed JavaScript code within the HTML document.
var i, j;: Declares two variables, i and j, which will be used as loop counters.
for(i=1; i<=5; i++): This is the outer loop that iterates from i = 1 to i = 5. It controls the number of rows in the pattern.
{: Opening curly brace to indicate the start of the outer loop's code block.
for(j=5; j>=i; j--): This is the inner loop that iterates from j = 5 to j being greater than or equal to i. It controls the number of columns (or characters) in each row.
{: Opening curly brace to indicate the start of the inner loop's code block.
document.write(j);: This line outputs the current value of j (which ranges from 5 to the current value of i) to the HTML document using the document.write() function. This function is often used for testing and debugging, but it's not considered good practice for generating dynamic content in production.
}: Closing curly brace to indicate the end of the inner loop's code block.
document.write("<br>");: This line writes an HTML line break (<br>) to create a new line after each row of numbers.
}: Closing curly brace to indicate the end of the outer loop's code block.
</script>: Closes the JavaScript code block.
</body>: Closes the body section of the HTML document.
</html>: Closes the HTML document.

💯 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!