I'm very new in nuxt and vuejs so this might be a dumb question.
I'm trying to import ref and computed to my Sidebar component but I'm getting a warning.
enter image description here
What can I do to fix that ?
this is how I tried to do it
import {ref,computed} from 'vue';
Related
Case and problem
I´m working on a private project with Vue.js and have the following error, which occurs when I´m trying to use the FileUpload component of PrimeVue:
[Vue warn]: Property "$primevue" was accessed during render but is not defined on instance.
Trying to use FileUpload in my component:
<template>
<FileUpload name="demo[]" url="" #upload="onUpload" :multiple="true" :maxFileSize="1000000">
<template #empty>
<p>Drag and drop files to here to upload.</p>
</template>
</FileUpload>
</template>
The error only occurs, when I try to use FileUpload, if I remove it, the component works. FileUpload and PrimeVue are imported like they should, in the main.js:
import {createApp} from 'vue'
import router from "./router";
import store from "./store";
import PrimeVue from "primevue/config";
import PrimeIcons from "primevue/config";
import App from "./App";
const app = createApp(App);
app.use(
router,
PrimeVue,
PrimeIcons,
store
)
import 'primevue/resources/primevue.min.css'
import 'primeflex/primeflex.css'
import 'primeicons/primeicons.css'
import 'primevue/resources/themes/bootstrap4-dark-purple/theme.css'
import Card from "primevue/card";
import Menubar from "primevue/menubar";
import FileUpload from "primevue/fileupload";
app.component('Card', Card)
app.component('Menubar', Menubar)
app.component('FileUpload', FileUpload)
app.mount('#app')
What I tried so far
I searched this issue, but the only exact match for this error is an old closed issue on GitHub regarding the Calendar component: Issue #808. The error in this issue was caused because of the breaking change with the new PrimeVue API. This should not be my case, because it was introduced with V3.1 and I´m using V3.7.
In case the version is the problem I tested different versions of PrimeVue, like 3.1, 3.2, 3.3 but the error still shows. Thats why the actual dependencie is still the latest:
"primevue": "^3.7.0"
Maybe there is an already existing solution on SO or Google, but either my english is to bad to understand or I´m still to fresh at Vue.js to comprehend the problem.
Thanks in advance!
Your usage of app.use() is incorrect:
app.use(
router,
PrimeVue,
PrimeIcons,
store
)
app.use() takes only two arguments:
first argument: the Vue plugin
second argument: the plugin options
Also, PrimeIcons is not a plugin, so that should not be passed to app.use().
Solution
Pass each plugin individually to app.use():
app.use(router)
.use(PrimeVue)
//.use(PrimeIcons) // not a plugin
.use(store)
i have use realm sdk in vue2 with this syntax
// file scr/plugins/realm.js
import Vue from 'vue';
import {App} from 'realm-web';
Vue.prototype.realmApp = new App({id: 'artes-realm-vl12'})
//file scr/main.js
import './plugins/realm';
but in Vue3 this syntax is't working anymore can you please help me how to solve with this problem thank you
In main.js add that app as global property :
import {createApp} from 'vue'
import {App} from 'realm-web';
import app from './App.vue'
const myApp=createApp(app)
myApp.config.globalProperties.realmApp = new App({id: 'artes-realm-vl12'})
myApp.mount('#app');
Anyone know a way to insert a telephone field with a country code dropdown similar to the one in the link for vue3?
https://www.npmjs.com/package/vue-tel-input
I had tried to use the package in the link but it throws the following error in console.
Uncaught (in promise) TypeError: selfHook.bind is not a function
attempted implementation:
main.js
import { createApp } from 'vue'
import VueTelInput from 'vue-tel-input'
const app = createApp(App);
app.use(VueTelInput)
app.mount('#app');
in the App.vue I just imported it like a component using the following code:
<vue-tel-input></vue-tel-input>
Someone posted on an open issue regarding Vue3 support for the library that they have created a Vue3 version of it: https://github.com/victorybiz/vue3-tel-input
I have tried it and it seems to work fine!
This library supports Vue 3 now. https://iamstevendao.github.io/vue-tel-input/documentation/next.html
npm install vue-tel-input#next
import { createApp } from 'vue';
import App from './App.vue';
import VueTelInput from 'vue-tel-input';
import 'vue-tel-input/dist/vue-tel-input.css';
const app = createApp(App);
app.use(VueTelInput);
app.mount('#app');
...
<template>
<vue-tel-input v-model="phone"></vue-tel-input>
></template>
I am learning Vue.js.
I have this code which runs fine :
import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
const app = createApp(App).use(store).use(router)
app.mount('#app')
Now I would like to add some import, for example 'axios'. This code does not run :
import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
import axios from 'axios'
const app = createApp(App).use(store).use(router).use(axios)
app.mount('#app')
The error is:
Uncaught RangeError: Maximum call stack size exceeded
at merge (utils.js?c532:276)
at assignValue (utils.js?c532:282)
at forEach (utils.js?c532:253)
at merge (utils.js?c532:291)
at assignValue (utils.js?c532:282)
at forEach (utils.js?c532:253)
at merge (utils.js?c532:291)
at assignValue (utils.js?c532:282)
at forEach (utils.js?c532:253)
at merge (utils.js?c532:291)
So how to add some other "use" in the main.js file ? It is certainly very basic but I am a beginner.
You're using vue 3 and axios is not a plugin (we cannot register it like app.use()) it's a javascript module that could be add to the app instance like :
import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
import axios from 'axios'
const app = createApp(App).use(store).use(router)
app.config.globalProperties.axios=axios
app.mount('#app')
and in child component reference it like :
this.axios
Note: the code below is valid for Vue 2.x. Since version 3, some stuff has changed regarding initialization (createApp function is now required).
What I usually do in my code is the following:
import Vue from 'vue';
import axios from 'axios';
// Add it to Vue prototype (use any variable you like, preferrably prefixed with a $).
Vue.prototype.$http = axios;
// Instantiate the main vue app.
let app = new Vue({
//
});
This means that the $http object is now available in all your components using this.$http. Since it is assigned as a prototype variable, it is considered a singleton (it is re-used everywhere), so you can add any options you need to the axios variable before assigning it to Vue.prototype.$http.
Additionally:
Vue.use() is made specifically for enabling Vue plugins. That means the given parameter must use the exact syntax as described here https://v2.vuejs.org/v2/guide/plugins.html . Since axios is not a Vue plugin but just a regular JavaScript library, you cannot use it with this function.
If you want to make it especially nice (or convoluted), you can use the following syntax:
Vue.use({
install(v) {
v.prototype.$http = axios;
// Do other stuff like adding mixins etc.
}
})
This may clear up your code if you move this code to another file, so it could end up like this:
import myCustomAxiosLoader from './bootstrap/axios';
Vue.use(myCustomAxiosLoader);
I have file: components.js:
import Vue from 'vue'
import SelectCategory from './components/SelectCategoryComponent'
import CommentsManager from './components/CommentsManagerComponent'
Vue.component('select-category', SelectCategory);
Vue.component('comments-manager', CommentsManager);
In app.js I imported this file:
window.Vue = require('vue');
import './components'
But when page is loading I get error: Vue is not defined. When I add import Vue from 'vue' in every component then all working good. But how I can add Vue globally, without add import Vue from 'vue' in every component?
But how I can add Vue globally, without add import Vue from 'vue' in every component
You should not use global variables. Put import Vue from 'vue' in every file.
Now, if you still want to, use global instead of window. And make sure that file is loaded first. Or, you might want to set window= in your html file, and leave it out of every file.
As I can see within your components.js you have imported Vue and you have imported another Vue and you have put it to window object. so you have imported 2 different Vue within your application, as well there is no need to use components.js and app.js that can be confused later. so I suggest you put all your requirement within app.js file.
so app.js file will be like this :
import Vue from 'vue'; // es6 syntax
window.Vue = Vue;
import SelectCategory from './components/SelectCategoryComponent'
import CommentsManager from './components/CommentsManagerComponent'
Vue.component('select-category', SelectCategory);
Vue.component('comments-manager', CommentsManager);