array排序（按数组中对象的属性进行排序）

使用array.sort()对数组中对象的属性进行排序

<template>
  <div>
    <a @click="sortArray()">降序</a>
  </div>
</template>
<script>
const oldArray = [{id: 1, name: 'Bek', age: '28'}, {id: 2, name: 'Evan', age: '12'}, {id: 3, name: 'John', age: '34'}]
export default{
  methods: {
    sortArray() {
      let newArray = oldArray.sort(this.compara('age'))
      console.log('newArray', newArray)
    },
    // 降序 要按哪个属性排序 property
    compara(property) {
      return function (object1, object2) {
        let val1 = object1[property]
        let val2 = object2[property]
        if (val1 > val2) {
          return -1
        } else if (val1 < val2) {
          return 1
        } else {
          return 0
        }
      }
    }
  }
}
</script>