需求

• 针对list中某个字段，实现list的升序和降序

效果图

代码

我是用在angular1.X中项目的，根据list中的sort字段进行排序。

# sort.html
<style>
.list-sort .upper-sort {
  width: 0;
  height: 0;
  margin-bottom: 10px;
  border-top: 15px solid transparent;
  border-right: 15px solid transparent;
  border-bottom: 15px solid #ccc;
  border-left: 15px solid transparent;
}

.list-sort .down-sort {
  width: 0;
  height: 0;
  border-top: 15px solid #ccc;
  border-right: 15px solid transparent;
  border-bottom: 15px solid transparent;
  border-left: 15px solid transparent;
}
</style>

...

<div class="list-sort">
  <div class="upper-sort" data-action="upper" ng-click="upSort()"></div>
  <div class="down-sort" data-action="down" ng-click="downSort()"></div>
</div>

#sortCtrl.js
function bubble_sort(list) {
  count = list.length;
  for (let i = 0;i < count - 1;i++) {
      let swapped = false;
      for (let j = 0;j < count - 1;j++) {
          if (list[j].score > list[j + 1].score) {
              let temp = list[j];
              list[j] = list[j + 1];
              list[j + 1] = temp;
              swapped = true;
          }
      }
      if (!swapped) {
          break;
      }
  }
  return list;
}

function bubble_sort_revert(list) {
  count = list.length;
  for (let i = 0;i < count - 1;i++) {
      let swapped = false;
      for (let j = 0;j < count - 1;j++) {
          if (list[j].score < list[j + 1].score) {
              let temp = list[j];
              list[j] = list[j + 1];
              list[j + 1] = temp;
              swapped = true;
          }
      }
      if (!swapped) {
          break;
      }
  }
  return list;
}

$scope.upSort = function () {
  bubble_sort($scope.candidateList)
  let upper = document.querySelector("[data-action=upper]");
  let down = document.querySelector("[data-action=down]");
  upper.style.borderBottomColor = "#2196f3";
  down.style.borderTopColor = "#ccc";
};

$scope.downSort = function () {
  bubble_sort_revert($scope.candidateList)
  let upper = document.querySelector("[data-action=upper]");
  let down = document.querySelector("[data-action=down]");
  upper.style.borderBottomColor = "#ccc";
  down.style.borderTopColor = "#2196f3";
};