vue、js前端map排序

objSortByVal(obj) {
  let keyArr = [],valArr = [];
  for (let key in obj) {
    keyArr.push(key);
    valArr.push(obj[key]);
  }
  for (let i = 0, len = valArr.length; i < len; i++) {
    for (let j = 0; j < len - i; j++) {
      let keyTemp, valTemp;
      if (valArr[j] < valArr[j + 1]) {
        valTemp = valArr[j];
        valArr[j] = valArr[j + 1];
        valArr[j+1] = valTemp;
        keyTemp = keyArr[j];
        keyArr[j] = keyArr[j + 1];
        keyArr[j+1] = keyTemp;
      }
    }
  }
  let newObj={};
  for(let i=0;i<valArr.length;i++){
    newObj[''+keyArr[i]+'']=valArr[i];
  }
  return newObj;
},

调用方法：

let newMap = this.objSortByVal(res.body.totalMap);