Vue对列表进行过滤和排序


代码如下：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div id="demo">
    <input type="text" v-model="searchName">
    <ul>
        <li v-for="(p,index) in filterPersons" :key="index">
            {{index}}--->{{p.name}}--->{{p.age}}
        </li>
    </ul>
    <button @click="setOrder(1)">年龄升序</button>
    <button @click="setOrder(2)">年龄降序</button>
    <button @click="setOrder(0)">原本顺序</button>
</div>
<script type="text/javascript" src="./js/vue.js"></script>
<script type="text/javascript">
    new Vue({
        el: "#demo",
        data: {
            searchName: '',
            orderType: 0, //  1 升序 2 降序
            persons: [
                {name: "Tom", age: 18},
                {name: "Jack", age: 20},
                {name: "David", age: 15},
                {name: "Bob", age: 16},
                {name: "Rose", age: 17}
            ]
        },
        methods: {
            setOrder(orderNum){
                this.orderType = orderNum
            }
        },
        computed: {
            filterPersons() {
                const {searchName, persons, orderType} = this
                let fPersons = persons.filter(p => p.name.indexOf(searchName) !== -1)
                if (orderType !== 0) {
                    // 返回负数 p1 在前 返回正数 p2 在前
                    fPersons.sort(function (p1, p2) {
                        if (orderType === 1) {
                            return p1.age - p2.age
                        } else {
                            return p2.age - p1.age
                        }
                    })
                }
                return fPersons
            }
        }
    });
</script>
</body>
</html>
posted @ 2021-01-06 18:14  陌上的忧伤的个人博客  阅读(259)  评论(0)    收藏  举报