All files / leetCode 0342.ts

100% Statements 5/5
100% Branches 2/2
100% Functions 1/1
100% Lines 5/5

Press n or j to go to the next uncovered block, b, p or k for the previous block.

1 2 3 4 5 6 7 8 9 10  4x 1x   3x 2x   3x    
export default function isPowerOfFour(n: number): boolean {
  if (n <= 0)
    return false
 
  while (n % 4 === 0)
    n = Math.floor(n / 4)
 
  return n === 1
}