【发布时间】：2018-06-04 03:02:52
【问题描述】：
我整天都在努力解决这个问题。出现以下问题，我的小胡子护腕组件没有在我的网站上呈现。我只是将括号中未渲染的组件作为输出。
//app.js
//
import Vue from 'vue'
new Vue({
//We want to target the div with an id of 'events'
el: '#events',
//Here we can register any values or collections that hold data
//for the application
data: {
event: {
name: '',
description: '',
date: ''
},
events: []
},
// Anything within the ready function will run when the application loads
ready: function() {
//When application loads, we want to call the method that initializies
//some data
this.fetchEvents();
},
// Methods we want to use in our application are registered here
methods: {
//We dedicate a method to retrieving and setting some data
fetchEvents: function() {
// body...
var events = [{
id: 1,
name: 'TIFF',
description: 'Toronto International Film Festival',
date: '2015-09-10'
},
{
id: 2,
name: 'The Martian Premiere',
description: 'The Martian comes to theatres',
date: '2015-10-02'
},
{
id: 3,
name: 'SXSW',
description: 'Music, film and interactive festival in Austin, TX'
date: '2016-03-11'
}
];
//Set is a convenience method provided by Vue that is similar to pushing
//data onto an array
this.$set('events', events);
},
//Adds an event to the existing events array
addEvent: function() {
if (this.event.name) {
this.events.push(this.event);
this.event = {
name: '',
description: '',
date: ''
};
}
}
deleteEvent: function(index) {
if (confirm("Are you sure you want to delete this Event?")) {
//$remove is a Vue convenience method similar to splice
this.events.$remove(index);
}
}
}
});
<!DOCTYPE html>
<html>
<head>
<title>Vue</title>
<meta charset="utf-8">
<!-- CSS -->
<link rel="stylesheet" href="node_modules/bootstrap/dist/css/bootstrap.min.css">
<script src="node_modules/vue/dist/vue.js"></script>
<script src="node_modules/vue-resource/dist/vue-resource.js"></script>
<script src="app.js"></script>
</head>
<body>
<!-- navigation bar -->
<nav class="navbar navbar-default">
<div class="container-fluid">
<a class="navbar-brand"><i class="glyphicon glyphicon-bullhorn"></i>Vue Events Bulletin</a>
</div>
</nav>
<!-- main body of our application -->
<div class="container" id="events">
<!-- add an event form -->
<div class="col-sm-6">
<div class="panel panel-default">
<div class="panel-heading">
<h3>Add an Event</h3>
</div>
<div class="panel-body">
<div class="form-group">
<input class="form-control" placeholder="Event Name" v-model="event.name">
</div>
<div class="form-group">
<textarea class="form-control" placeholder="Event Description" v-model="event.description"></textarea>
</div>
<div class="form-group">
<input type="date" class="form-control" placeholder="Date" v-model="event.date">
</div>
<button class="btn btn-primary" v-on:click="addEvent()">Submit</button>
</div>
</div>
</div>
<div class="col-sm-6">
<div class="list-group">
<a href="#" class="list-group-item" v-repeat="event in events">
<h4 class="list-group-item-heading">
<i class="glyphicon glyphicon-bullhorn"></i> {{ event.name }}
</h4>
<h5>
<i class="glyphicon glyphicon-calender" v-if="event.date"></i> {{ event.date }}
</h5>
<p class="list-group-item-text" v-if="event.description">{{ event.description }}</p>
<button class="btn btn-xs btn-danger" v-on:click="deleteEvent($index)">Delete</button>
</a>
</div>
</div>
</div>
<!-- JS -->
<!--<script src="node_modules/vue/dist/vue.js"></script> -->
<!--<script src="node_modules/vue-resource/dist/vue-resource.js"><!--</script> -->
<!--<script src="app.js"></script> -->
</body>
【问题讨论】：
-
假设您使用的是 Vue 2。在 Vue 2 中，
$set接受三个参数。在这种情况下也是不必要的。将this.$set('events', events);更改为this.events = events。此外，正如下面的答案中提到的，ready不是 Vue 2 生命周期处理程序，或者$index有效。我建议你通读 Vue 2 的文档。 -
感谢您抽出宝贵时间查看它，我将您建议的内容更改为
this.events = events并将删除功能注释掉，因为我只想满足现在呈现的小胡子护腕。另外，如果我能找到我做错的任何解决方案，但我仍然会阅读 Vue 2 文档，但到目前为止还没有成功。还是一样的结果。但是感谢您的帮助，非常感谢！ :)
标签： javascript vue.js components render