Power of 2 algo

by Rich Costello

JavaScript

/*function isPowerOfTwo(n){
  if(n < 1) {
    return false
  } 
    while(n > 1) {
      if(n % 2 !== 0){
      return false
    }
    n = n / 2
  }
  return true

}


console.log(isPowerOfTwo(1))
console.log(isPowerOfTwo(2))
console.log(isPowerOfTwo(5))

// big O O(logn)*/