My component doesn't render and I get the above warning in the console. This is my first Vue project, so I am struggling to understand where the issue lies.
This is my App.vue:
<template>
<Header />
</template>
<script>
import Header from "./components/Header";
export default {
setup() {
return {
Header,
};
},
};
</script>
And this is the Header component, I am trying to render, Header.vue:
<template>
<header>
<h1>Income Tracker</h1>
<div class="total-income">€0</div>
</header>
</template>
<script>
export default {};
</script>
Any idea where I am going wrong?
Like in Vue 2:
<script>
import Header from "./components/Header";
export default {
components {
Header
},
};
</script>
Related
I can't seem to pass dynamically modified properties from layouts into the <Nuxt /> component.
This is my ~/layouts/default.vue
<template>
<div>
<input v-model="myprop" />
<span>{{myprop}}</span>
<Nuxt />
</div>
</template>
<script>
export default {
provide: function () {
return {myprop: this.myprop};
},
data: () => ({
myprop: 'hello galaxy',
}),
}
</script>
This is my ~/pages/index.vue
<template>
<div>My Prop is: {{myprop}}</div>
</template>
<script>
export default {
inject: ["myprop"]
}
</script>
On the web page I see hello galaxy printed 3 times, once in the input, once in a span, and once in the Nuxt component. But when I edit the input field, only the span is updated. The Nuxt component does not capture the changes in myprop. The Nuxt component continues to show only hello galaxy while put the input and span shows changes as I type on my keyboard
What am I doing wrong?
The provide/inject is useful for simple situation, but if you've some reactive stuff the vuex store is more convenient :
in store/index.js
add a state called search and its mutations and actions :
export const state=()=>({
search:''
})
export const mutations ={
SET_SEARCH(state,payload){
state.search=payload
}
}
export const actions ={
setSearch(context,payload){
context.commit('SET_SEARCH',payload)
}
}
in layout/default.vue add computed property with setter/getter bound to the store:
<template>
<div>
<input v-model="search" />
<span>{{search}}</span>
<Nuxt />
</div>
</template>
<script>
export default {
computed:{
search:{
get(){
return this.$store.state.search
},
set(val){
this.$store.dispatch('setSearch',val)
}
}
}
}
</script>
in pages/index.vue :
<template>
<div>My search is: {{search}}</div>
</template>
<script>
export default {
computed:{
search(){
return this.$store.state.search
}
}
}
</script>
Please see this minimum example, I have a simple component called HelloWorld.vue
HelloWorld.vue
<template>
<div class="foo">bar</div>
</template>
When I using this component like this
App.vue
<template>
<HelloWorld />
</template>
<script>
import HelloWorld from "./HelloWorld.vue";
export default {
components: {
HelloWorld,
},
};
</script>
This rendered HTML looks like this
Rendered HTML
<div class="foo">bar</div>
However, when I add :is prop, rendered HTML changed
App.vue
<template>
<HelloWorld is="h2" />
</template>
<script>
import HelloWorld from "./HelloWorld.vue";
export default {
components: {
HelloWorld,
},
};
</script>
Rendered HTML
<h2></h2>
Why is this happening?
Is it possible to overwrite only the outer HTML tag just like the class and style prop?
is should be used together with the component element:
<component is="h2"></component>
<HelloWorld is="h2" /> efficiently renders h2 instead of HelloWorld.
In order for root element to be configurable, the component should provide this:
<template>
<component :is="tag" class="foo">bar</div>
</template>
<script>
export default {
props: {
tag: {
type: String,
default: 'div'
}
}
}
</script>
I am trying to use a child compontent in another compontent and it does not work. I have been trying to solve this problem looking for typos etc. for hours, but can't find anything.
Menu.vue
<template>
<div class='navbar-and-alert'>
<alert/>
<nav class='navbar'>
</nav>
</div>
</template>
<script>
import Alert from './Alert.vue'
export default {
name: 'Navbar',
compontents: {
Alert
},
data (){
return {
}
},
}
</script>
Alert.vue
<template>
<section class='alert-section'>
<p class='alert-section__content'>
...
</p>
<a href=''><img src='/static/assets/img/close.svg' class='alert-section__close-icon'></a>
</section>
</template>
<script>
export default {
name: 'Alert',
}
</script>
I get this alert in console:
Vue warn]: Unknown custom element: - did you register the component correctly? For recursive components, make sure to provide the "name" option.
found in
The alert component works when used inside App.vue
components has a typo:
compontents: {
Alert
},
Should be:
components: {
Alert
},
I'm facing an issue with my first Vue Project. I already googled for a while but can't find something very usefull.
I simply try to create a parent ("Files") and a child component ("Filelist") and use the Filelist in Files. This is not working as expected. I can't see the mistake, beacause i already added
export default {
name: 'Filelist',
The only hint I can get is from the browser console
[Vue warn]: Unknown custom element: <Filelist> - did you register the component correctly? For recursive components, make sure to provide the "name" option.
found in
---> <Files> at src/docs/categories/Files.vue
<App> at src/App.vue
<Root>
and
./src/App.vue (./node_modules/babel-loader/lib!./node_modules/vue-loader/lib/selector.js?type=script&index=0!./src/App.vue) 42:14-22"
export 'Filelist' was not found in '#/components/Filelist'
Thanks a lot in advance
The code of Files:
<template>
<div class="">
<h1>Hedajo</h1>
<Filelist :msg="sometext"/>
{{ sometext }}
</div>
</template>
<script>
import { Filelist } from "#/components/Filelist.vue";
export default {
name: "Files",
components: {
Filelist
},
data() {
return {
sometext: "hejo",
};
},
methods: {
}
};
</script>
<style scoped>
</style>
The code of Filelist:
<template>
<component class="">
{{ msg }}
<p>hewhwe</p>
{{ hedadi }}
{{ testi }}
</component>
</template>
<script>
export default {
name: 'Filelist',
props: ["msg"],
data () {
return {
testi: "hedadi",
};
}
};
</script>
<style scoped>
</style>
It's a default export, so you don't need to extract it. Try
import Filelist from "#/components/Filelist.vue";
You will need to register FileList as a component before using it.
<template>
<div class="">
<h1>Hedajo</h1>
<Filelist :msg="sometext"/>
{{ sometext }}
</div>
</template>
<script>
import Vue from 'vue';
Vue.component('Filelist', require('#/components/Filelist.vue').default);
....
You dont need the import Filelist statement in this case
I got problem with vuejs, please help me
I have main.js:
import App from './App.vue'
import routes from './app.router';
Vue.use(BootstrapVue);
new Vue({
el:'#app',
render: h => h(App),
created(){
},
router: routes,
methods:{
}
})
My file App.vue:
<template>
<div id="app" class="">
<menu-header> </menu-header>
<router-view> </router-view>
</div>
</template>
<script>
import menuHeader from './components/layout/menu-header.vue'; // error when i import this component
components:{
menuHeader
}
</script>
This is my menu-header.vue:
<template>
<ul>
<li>
Hello
</li>
</ul>
</template>
<script>
export default {
name: "menuHeader"
};
</script>
My problem is when i add menu-header component, my page give me error:
Cannot set property 'render' of undefined
But if I don't, it run normally. Please explain why and help me fix it.
Many thanks.
It looks like you are not exporting Vue component definition properly from App.vue file:
<template>
<div id="app" class="">
<menu-header> </menu-header>
<router-view> </router-view>
</div>
</template>
<script>
import MenuHeader from './components/layout/menu-header.vue'; // error when I import this component
// Code is missing export
export default {
components: {
MenuHeader
}
}
</script>