javascript - 如何按百分比等计算字段对 javascript 中的数组进行排序

Question

如何根据对象属性的计算字段对对象数组进行排序，例如对象的 2 个属性的百分比，如下所示

myArray.sort(  function(a,b){
      var firstPer = calculatePercent(a[factor],a.Total_Records);
      var secPer =  calculatePercent(b[factor],b.Total_Records);
      if(dir ==='asc')
         return  firstPer < secPer ? something  : something

} )

Answer 1

你只需要返回一个数字:

myArray.sort(function(a,b) {
  var firstPer = calculatePercent(a[factor], a.Total_Records);
  var secPer = calculatePercent(b[factor], b.Total_Records);
  if (dir === 'asc') {
    return firstPer - secPer;
  }
  return secPer - firstPer;
}