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Ich möchte die Daten konvertieren course.length
从 api 添加到 v-select
上的每个项目 option
und in einem aktivitätsbasierten Filter anzeigen.
Zum Beispiel: v-select
中的项目包含从 online.passed
过滤的选项 all(count)
、passed(count)
、notcomplete(count)
Filtern nach online.complete
usw.
vue.js-Vorlage:
<template> <v-select v-model="filter" :items="items" ></v-select> <v-card v-for="online in onlineCourse" :key="online.id"> <v-card-title>{{online.title}</v-card-title> <p v-if="online.complete === 100">{{online.complete}}%</p> <p v-else-if="online.complete < 100 && online.complete > 0">{{online.complete}}%</p> <p v-else>{{online.complete}}%</p> </v-card> </template> <script> data () { return { onlineCourse: [], filter: 'All', items: [ 'All', 'passed', 'not complete', ], } } method: { async getDataOnline () { try { const request = await Axios.get('v1/courses') this.onlineCourse = request.courses } catch (error) { console.log(error.message); } } } </script>
Antwort JSON:
"courses": [ { "id": 1, "title": "title1", "passed": false, "completed": 0 }, { "id": 2, "title": "title2", "passed": true, "completed": 100 }, { "id": 3, "title": "title3", "passed": false, "completed": 50 } ],
P粉7879344762024-04-01 10:42:39
您发布的当前代码中的一些观察结果:
online.complete === 100
但在线对象中没有 complete
属性。因此,将其更正为 completed
而不是 complete
。online.title
表达式中缺少右大括号。现在回到原来的问题:
在v-select
选项中实现计数。您必须将项目数组从 elements
数组转换为 objects
数组。
items: ['All', 'passed', 'not complete']
至
items: [{ name: 'All', count: this.onlineCourse.length }, { name: 'passed', count: this.onlineCourse.filter((course) => course.passed) }, { name: 'not complete', count: this.onlineCourse.filter((course) => course.completed === 0) }]