如何从对象数组中筛选符合条件的值

2024-04-02 19:55

短信预约 -IT技能 免费直播动态提醒

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：