2020-03-19 进制转化

[fanmingfei]

实现一个进制转换函数，不要使用toString

function mulBase(num, base){
  // code here
}

mulBase(20, 2) // 10100
mulBase(20, 8) // 24
mulBase(20, 10) // 10
mulBase(20, 16) // 14

mulBase(020, 2) // 10000
mulBase(020, 8) // 20
mulBase(020, 10) // 16
mulBase(020, 16) // 10

mulBase(0x20, 2) // 100000
mulBase(0x20, 8) // 40
mulBase(0x20, 10) // 32
mulBase(0x20, 16) // 20

mulBase(0b10, 2) // 10
mulBase(0b10, 8) // 2
mulBase(0b10, 10) // 2
mulBase(0b10, 16) // 2

[wangshouren7]

function mulBase(num, base) {
    // code here

    const stack = [];

    let quotient, remainder;//商  余数

    while ((quotient = parseInt(num / base)) !== 0) {
        remainder = num % base;
        stack.unshift(remainder);
        num = quotient;
    }

    stack.unshift(num % base)
    
    console.log(stack.join(''));

}

[LiZhaji]

function mulBase(num, base){
  const negiativeNum = num < 0
  num = negiativeNum ? -num : num

  const res = []

  do{
    res.unshift(num % base)
    num = Math.trunc(num / base)
  }while (num !== 0)

  return negiativeNum ? -res.join('') : res.join('')

}

[joker1148]

function mulBase(num, base){
  const result = []
  let number = num
  do{
    result.unshift(number%base)
    number = Math.floor(number/base)
  }while(number!=0)
  return result.join("")
}