JavaScript: Construct a pattern, using a nested for loop

JavaScript Conditional Statement and loops: Exercise-10 with Solution

Pyramid Pattern with Nested Loop

Write a JavaScript program to construct the following pattern, using a nested for loop.

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

Visual Presentation:

Sample Solution:

JavaScript Code:

// Variables to control loop counters and character output
var x, y, chr;

// Outer loop for rows
for (x = 1; x <= 6; x++) {
    // Inner loop for characters in each row
    for (y = 1; y < x; y++) {
        // Accumulate asterisks in the 'chr' variable
        chr = chr + ("*");
    }

    // Print the accumulated characters for the current row
    console.log(chr);

    // Reset 'chr' for the next row
    chr = '';
} 

Flowchart:

Live Demo:

See the Pen javascript-conditional-statements-and-loops-exercise-10 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript function that prints a pyramid pattern of stars with 5 levels using nested loops and string repetition.
• Write a JavaScript function that constructs a centered pyramid pattern with increasing numbers instead of stars.
• Write a JavaScript function that generates a pyramid pattern of stars using string padding to center-align each row.
• Write a JavaScript function that builds a pyramid pattern recursively instead of using nested loops.

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