How to use Nested for Loop In Javascript

Using Recursion

This approach uses the for loop to print the inverted pyramid by using nested loops we control the spacing and the number of “*” in each row. The outer loop mainly manages the rows and the inner loop controls the leading spaces and printing “*” in the pattern.

Syntax:

for (initialization; condition; iteration) {
     for ((initialization; condition; iteration){
         //code
     }
    // code
}

Example: To demonstrate printing an Inverted Pyramid in JavaScript using the Nested for loop in JavaScript.

Javascript

let r = 5;
for (let i = r; i >= 1; i--) {
    for (let j = r - i; j > 0; j--) {
        process.stdout.write("  ");
    }
    for (let k = 0; k < 2 * i - 1; k++) {
        process.stdout.write("* ");
    }
    console.log();
}

Output

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

JavaScript Program to Print Inverted Pyramid

In JavaScript, the Inverted Pyramid is the geometric pattern of “*” that is arranged in the format upside-down. This can be printed using various approaches like Looping, Recursion, and built-in methods.

Table of Content

Using Nested for Loop
Using Recursion
Using Array and Join methods

Tags:

#JavaScript-Program #JavaScript #Web Technologies

Using Recursion

How to use Nested for Loop In Javascript

Syntax:

Javascript

JavaScript Program to Print Inverted Pyramid

Similar Reads

Contact Us