Perfect Square Patch

Create a function that takes an integer and outputs an n x n square solely consisting of the integer n.

Examples

squarePatch(3) ➞ [
  [3, 3, 3],
  [3, 3, 3],
  [3, 3, 3]
]

squarePatch(5) ➞ [
  [5, 5, 5, 5, 5],
  [5, 5, 5, 5, 5],
  [5, 5, 5, 5, 5],
  [5, 5, 5, 5, 5],
  [5, 5, 5, 5, 5]
]

squarePatch(1) ➞ [
  [1]
]

squarePatch(0) ➞ []

Notes

• n >= 0.
• If n === 0, return an empty array.