How to print Left Half Pyramid Pattern in JavaScript - Step by Step Examples

How to print Left Half Pyramid Pattern in JavaScript ?

Answer

To print the Left Half Pyramid Pattern in JavaScript, we use nested loops where the outer loop controls the rows and the inner loop prints spaces and stars.

✐ Examples

1 Left Half Pyramid Pattern

In this example,

We define the size of the pyramid, n, which is set to 5 in this example.
We use two nested loops: an outer loop to handle rows and an inner loop to print spaces and stars.
The outer loop runs from 1 to n, controlling the number of rows.
The inner loop in JavaScript prints spaces based on the difference between n and the current row, followed by stars equal to the current row number.
This combination of loops and print statements creates the Left Half Pyramid Pattern.

JavaScript Program

function printLeftHalfPyramid() {
    let n = 5;
    for (let i = 1; i <= n; i++) {
        let row = '';
        for (let j = 1; j <= n - i; j++) {
            row += ' ';
        }
        for (let k = 1; k <= i; k++) {
            row += '*';
        }
        console.log(row);
    }
}

printLeftHalfPyramid();

Output

    *
   **
  ***
 ****
*****

Summary

In this tutorial, we learned How to print Left Half Pyramid Pattern in JavaScript language with well detailed examples.

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