#       
## Overview
In this shot, we will be learning how to print a Left Triangle star (`*`) Pattern with the help of Javascript.
The Left Triangle pattern displays `*` in the form of the Left triangle, right-angled from the left-side, on the console.


Below is the shape that we will be printing using `*` in the console:









We have to use two `for` loops, where one will be a nested `for` loop. The outer loop will be used for the #key# row: height #key# of the triangle, and the nested loop will be used for the column.

let n = 5;

for (let i = 1; i <= n; i++) {
  for (let j = 0; j < i; j++) {
    process.stdout.write("*");
  }
  console.log();
}

#     
#  Explanation
* In line 1, we take a number that is the height of the triangle or number of rows.

* In line 3, we have our first `for` loop, which will iterate over the height of the triangle (that is `5` here).

* In line 4, we have our nested `for` loop, which will iterate for less than the current row number.
For example,
`row (n) = 3` will execute for `j=0`, `j=1`, and `j=2`. When `j` becomes equal to `i` (current row),  it will terminate the `for` loop.


* In line 5,
the standard method `process.stdout.write()` of JavaScript is used to print the `*`. 
The number of times the nested `for` loop runs is equal to the number of stars it prints.

* In line 7, we have used `console.log()` with null, as it will change to a new line. We can use `process.stdout.write('\n')` to change the line.
##
## Result

We have successfully completed the task to print `*` in the form that looks like a Left triangle. This is only one of the many logics that can be used to print the same pattern.


What is the Left Triangle pattern in Javascript?

Learn to print a left-triangle star pattern in JavaScript using nested for loops, `process.stdout.write()`, and `console.log()` for new lines.

What is the Left Triangle pattern in Javascript?

Overview

Code

Explanation

Result