30-seconds-of-code/snippets/howManyTimes.md

howManyTimes

Returns the number of times num can be divided by divisor without getting a fractional answer. Works for both negative and positive integers.divisor can be positive too. If divisor is -1 or 1 returns Infinity. If divisor is -0 or 0 returns 0.

const howManyTimes = (num,divisor) => {
    if(divisor === 1 || divisor === -1) return Infinity
    if(divisor === 0) return 0
    let i = 0
    while(Number.isInteger(num/divisor)){
      i++
      num = num / divisor
    }
    return i
  }

howManyTimes(100,2); //2
howManyTimes(100,-2); //2
howManyTimes(100,2.5); //2
howManyTimes(100,3); //0
howManyTimes(100,0); //0
howManyTimes(100,1); //Infinity
howManyTimes(100,-1); //Infinity