题解 | #二进制转换#

function convertToBinary(num) {
let arr = [];
while(num!==0){
  arr.push(num%2);
  num = Math.floor(num/2);
}
arr = arr.reverse();
let len = arr.length;
if(len<8){
  for(let i = 0;i<8 - len;i++){
    arr.unshift(0);
  }
}
let str = '';
for(let i = 0;i<arr.length;i++){
  str+=arr[i];
}
return str;
}

这波写的够原始了