Inverted triangle

function pyramid(height) {
    // row loop
    for(let i = 0; i< height; i++) {
        const whitespaces = height - (i + 1);
        const stars = (2 * i) + 1;

        const characters = ' '.repeat(whitespaces) + '*'.repeat(stars);

        console.log(characters);
    }
}

pyramid(3);
pyramid(4);

/*
3 

  *
 ***
*****




4

   *
  ***
 *****
*******
*/