js 方法记录

1.new Date（）转换为年月日

transformTime(date){
      var d = new Date(date);
      var datetime =  d.getFullYear() + "-" + (d.getMonth() + 1) + "-" + d.getDate();
      return datetime;
}

2.对象数组单属性去重

使用loadsh

const _ = require('lodash');
// vue import _ from "lodash"

const array = [
  { id: 1, name: 'John' },
  { id: 2, name: 'Jane' },
  { id: 1, name: 'John' },
  { id: 3, name: 'Bob' },
  { id: 2, name: 'Jane' }
];

const uniqueArray = _.uniqBy(array, 'id');//array为数组 id为对象数组内某属性
console.log(uniqueArray);