function staircase(n) {

  // here we use just one for loop where i tracks the number of rows
  // the number of rows (i) should be less than or equal to n
    for (let i = 1; i <= n; i++) {
      // print out a " " n-i times and append a # i times
      // console log adds a new line by default

        console.log(" ".repeat(n-i) + "#".repeat(i))
    }
}