I've been trying to get storybook working with a Vue 2 + composition API project for a while now and I keep running into the error:
Unexpected error while loading ./ProductCard.stories.js: [vue-composition-api] must call Vue.use(VueCompositionAPI) before using any function.
So I assume I need to include it before any file/story gets called.
When I try and import it into my storybook's main.js file like this:
import Vue from "vue";
import VueCompositionApi from "#vue/composition-api";
Vue.use(VueCompositionApi);
module.exports = {
//... storybook config
}
I get the console error:
import Vue from "vue";
^^^^^^
SyntaxError: Cannot use import statement outside a module
I've also tried:
const Vue = require("vue");
const VueCompositionApi = require('#vue/composition-api');
Vue.use(VueCompositionApi);
Which appears to work but I still get the top error [vue-composition-api] must call Vue.use(VueCompositionAPI) before using any function.
Does anybody know where I'm meant to import the composition API so it's loaded before it's called?
I've tried putting it in the preview.js file as well with the same error.
Whats causing it is the component ProductCard loads a composable called useUiStatewhich uses vue-composition-api.
I would have thought it's called vue.use already.
Related
I am creating a frontend and a backend application inside one Vue 3 project. Everything works fine except that app.js is throwing following error, depending on which component is visited in the browser.
I you visit the app.vue:
[Vue warn]: Failed to mount app: mount target selector "#cms" returned null.
and if you visit the cms.vue:
[Vue warn]: Failed to mount app: mount target selector "#app" returned null.
The mounting file app.js looks like this:
require('./bootstrap');
import {createApp} from 'vue';
import app from "../vue/app";
import cms from "../vue/cms";
import router from "./router";
createApp(app)
.use(router)
.mount("#app");
createApp(cms)
.use(router)
.mount("#cms");
Is there any way I can prevent the browser warning?
You could query the document for those elements, and only mount the ones that exist:
const appEl = document.querySelector('#app');
if (appEl) {
createApp(app).use(router).mount(appEl);
}
const cmsEl = document.querySelector('#cms');
if (cmsEl) {
createApp(cms).use(router).mount(cmsEl);
}
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);
I'd like to use a separate Vue instance to handle events. This approach works in a standard Vue app but throws an error in the Nuxt environment.
Do I need to simply reference it differently?
Code
const Vue = require('vue');
const Hub = new Vue();
export default Hub;
// Usage
import Hub from '~/events/hub';
Hub.$emit(EVENT_TOGGLE_NAVIGATION, true);
Error
Uncaught TypeError: Vue is not a constructor
Environment
nuxt 1.0.0
vue 2.5.17
You need to use import
import Vue from 'vue'