Left Pyramid

let pyramidLeft = (rows) => {

	// Increment Star
  for (let i = 1; i <= rows; i++) {

    let str = '';

    for (let j = 1; j <= i; j++) {
      str += '*';
    }

    console.log(str);
  }

	// Decrement Star
  for (let i = 0; i <= rows; i++) {
    let str = Array(rows).join("*");

    for (let j = 1; j <= i; j++) {
      str = str.replace('*', '')
    }

    if (str != '') {
      console.log(str);
    }
  }
};

pyramidLeft(9);