从对象数组中筛选符合条件的值
爱编译也爱吃肉的喵 人气:0从对象数组中筛选符合条件的值
const arr = [1,2,3,4,5,6,7] const list = [ {openId: 1, timelineId: 1, showNo: 1, uid: 1}, {openId: 2, timelineId: 1, showNo: 1, uid: 1}, {openId: 9, timelineId: 1, showNo: 1, uid: 1}, {openId: 4, timelineId: 1, showNo: 1, uid: 1}, {openId: 5, timelineId: 1, showNo: 1, uid: 1} ] const params = list.filter(item=> arr.indexOf(item.openId) > -1) console.log(params)
将两个对象数组根据相同的索引index合并为一个数组
this.currentTotalList = this.totalList.map((item, index) => ({ ...item, ...daysList[index] }))
将两个对象数组根据相同的键值合并为一个数组
let currentEveryList = this.everyList.map(item => ({...item, ...signList.filter(s => s.signDate === item.signDate)[0]}))
从当前数组中筛选符合条件的值
this.materialss = this.materials.filter(item => item.categoryId === this.curTab.categoryId)
js根据已有数组,从数组对象中筛选数据
例如,已得到以下源数据
let dataArr = [ { id: 1, age: 15 }, { id: 2, age: 18 }, { id: 3, age: 16 }, { id: 4, age: 17 } ];
现在需要跟据获取的id数组(表格选中的行),筛选源数据
let goalArr = [1, 2];
解决思路
<script> let dataArr = [ { id: 1, age: 15 }, { id: 2, age: 18 }, { id: 3, age: 16 }, { id: 4, age: 17 } ]; let goalArr = [1, 2]; let resArr = []; goalArr.forEach((v, i) => { dataArr.forEach((item, index) => { if (item.id === v) { resArr.push(item) } }) }) console.log(resArr) // </script>
打印结果如下:
本来想用filter加forEach实现的,思路有点混乱烂尾了
以上为个人经验,希望能给大家一个参考,也希望大家多多支持。
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