I have created a Vue component that displays server connection data in a simple format:
<template>
<div class="container">
<div class="row">
<div class="col-xs-12">
<div class="page-header">
<h2 class="title">Data</h2>
</div>
<br>
</div>
<div class="col-xs-12">
<table class="table">
<tr>
<td>Server</td>
<td><strong>{{config.servers}}</strong></td>
</tr>
<tr>
<td>Port</td>
<td><strong>{{config.port}}</strong></td>
</tr>
<tr>
<td>Description</td>
<td><strong>{{config.description}}</strong></td>
</tr>
<tr>
<td>Protocol</td>
<td :class="{'text-success': isHttps}">
<i v-if="isHttps" class="fa fa-lock"></i>
<strong>{{config.scheme}}</strong>
</td>
</tr>
</table>
</div>
</div>
</div>
</template>
<script>
import { mapState } from 'vuex'
export default {
name: 'Application',
data () {
return {
config: {
scheme: '',
servers: '',
port: '',
description: ''
}
}
},
computed: {
...mapState(['server']),
isHttps: () => this.config.scheme === 'https'
},
mounted () {
const matched = this.server.match(/(https?):\/\/(.+):(\d+)/)
this.config = {
scheme: matched[1],
servers: matched[2],
port: matched[3],
description: window.location.hostname.split('.')[0] || 'Server'
}
}
}
</script>
Upon mounting the component, the server variable from Vuex is initialized and I can see the correct URL when running console.log(this.server). However, an error is thrown when utilizing my computed property isHttps:
[Vue warn]: Error in render function: "TypeError: Cannot read property 'scheme' of undefined"
found in
---> <Application> at src/pages/Aplicativo.vue
<App> at src/App.vue
<Root>
I've tried renaming config to different identifiers like configuration or details, as well as changing mounted to created, but the error persists and the template fails to render.
Initially, I attempted to make config a computed property, which also resulted in the same error appearing in the console. Additionally, trying to use the store as a computed property such as $store.state.server triggers an error stating that $store is undefined:
server: () => this.$store.state.server
What steps should I take to resolve this issue?