javascript - 如何对一组数字求和，使数组的总和为 100

Question

例如 [1,1] --> [50,50] 和 [1,2] --> [33.33, 66.67]

这是我的代码:

let total = getTotal(arrayOfNum);
let remainder =  100 - total;
arrayOfNum.map(n => {
  let newValue = n + ( (remainder / total ) * n);
 return newValue || 0;
});

当数组中的所有项目均为 0 时，此代码无法正确汇总

[0,0,0] --> [0,0,0] 虽然我期待类似 [0,0,0] --> [33.33, 33.33, 33.33]

Answer 1

你能看到这个解决方案吗？

const t = [0,2];

const total = arrayOfNum.reduce((r,n)=>r+n);

arrayOfNum
          .map(n=> n/total)
          .map(n=> !isNaN(n) ? n * 100 : 1/arrayOfNum.length * 100 )