I'm having trouble using Vue.js components in HTML files.
Mainly I have a problem with registering the component and using it in the html file.
In general, I'd like to register a component and use it anywhere in the code. The current code that I took from the original Vue.js website works so that the component is added to the application right away.
index.html:
<body>
<div id="app">
<header></header>
<nav></nav>
<main></main>
<footer> </footer>
</div>
</body>
</html>
<script type="importmap">
{
"imports": {
"vue": "https://unpkg.com/vue#3/dist/vue.esm-browser.js"
}
}
</script>
<script type="module">
import { createApp } from 'vue'
import MyComponent from './header.js'
createApp(MyComponent).mount('#app')
</script>
Header.js:
export default {
data() {
return { count: 0 }
},
template: `<div>count is {{ count }}</div>`
}
Then the created component in another file actually works, but it is added automatically to the application.
How could I register this component and put it in the code where I want?
[1]Can not import?
I wanna link a js file with Vue imported on it to a html.
Is seems the html is linking correctly the script.js under the script tag but the javascript file cant understand Vue so the html cant do so.
Im very inexperienced, it is basic help.
import Vue in index.html
<head>
<script type="importmap">
{
"imports": {
"vue": "/lib/vue.esm.browser.js_2.6.11/vue.esm-browser.js",
"vue-multiselect":"/lib/vue-multiselect/vue-multiselect.esm.min.js",
"SingleFileComponent":"/js/SingleFileComponent.js",
"MultiSelectComponent":"/js/MultiSelectComponent.js"
}
}
</script>
</head>
create anchor in index.html
<div id="app">
<multi-select-component></multi-select-component>
</div>
<div id="single">
<single-file-component></single-file-component>
</div>
<script type="module">
import { createApp } from 'vue'
import VueMultiselect from 'vue-multiselect'
import SingleFileComponent from "SingleFileComponent";
import MultiSelectComponent from "MultiSelectComponent"
createApp({
components: {
MultiSelectComponent
}
})
.component('multiselect', VueMultiselect)
.mount('#app')
createApp({
components: {
SingleFileComponent
}
})
.mount('#single')
</script>
create single-file-component in SingleFileComponent.js
export default {
template: `
<div>
<h1>Single-file JavaScript Component</h1>
<p>{{ message }}</p>
</div>
`,
data() {
return {
message: 'Oh hai from the component'
}
},
}
create multi-select-component in MultiSelectComponent.js
export default {
template: `
<multiselect v-model="value" :options="options"></multiselect>
<label>{{ value }}</label>`,
data() {
return {
value: null, options: ['list', 'of', 'options']
}
}
}
I have been using "element-ui" and now moving forward to new version of Vue3.
Seems they published a new version called "element-plus" but the tutorial is not updated.
import Vue from 'vue'; // not working in Vue3
import ElementUI from 'element-plus';
import 'element-ui/lib/theme-chalk/index.css';
...
Vue.use(ElementUI); // no "Vue" in Vue3 anymore
...
createApp(App).mount('#app') // the new project creation
https://element-plus.org/#/en-US/component/quickstart
Anyone manged to do it right and it works?
If you are using vue 3 you need to import createApp as well as css from 'element-plus/...' folder. Then you instance your app using the vue function imported, basically you pass your main app component to the function as an argument:
import { createApp } from 'vue'
import App from './YourMainApp.vue'
import ElementPlus from 'element-plus'
import 'element-plus/lib/theme-chalk/index.css'
let app = createApp(App)
app.use(ElementPlus)
app.mount('#app')
You can also do it very easy without any js bundler.
Here is a sample:
var Main = {
data() {
return {
message: 'Hello World!'
}
},
methods: {
click() {
console.log('click()');
}
}
};
const app = Vue.createApp(Main);
app.use(ElementPlus);
app.mount("#app")
<html>
<head>
<link rel="stylesheet" href="//unpkg.com/element-plus/theme-chalk/index.css">
</head>
<body>
<script src="//unpkg.com/vue#next"></script>
<script src="//unpkg.com/element-plus/dist/index.full.js"></script>
<div id="app">
<el-button type="primary" size="medium" #click="click">{{message}}</el-button>
</div>
</body>
</html>
Note: Can we write vue.js large application without using any compiler for code like currently i see all example use webpack now to make vue.js code compatible for browser .
I want make vue.js application without webpack and without using .vue extension. Is it possible? if it is possible, can you provide a link or give sample how to use routing in that case.
As we make component in .vue extension can be make component in .js extension and use application as we do in angular 1 where we can make whole app without any trans-compiler to convert the code.
Can be done that in html , css , js file only and no webpack sort of thing.
What i have done .
index.js
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<title>vueapp01</title>
</head>
<body>
<div id="app"></div>
<!-- built files will be auto injected -->
</body>
</html>
main.js this file added in webpack load time
// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'
import router from './router'
Vue.config.productionTip = false
/* eslint-disable no-new */
new Vue({
el: '#app',
router,
components: { App },
template: '<App/>'
})
App.vue
<template>
<div id="app">
<img src="./assets/logo.png">
Hello route
Helloworld route
{{route}}
<router-view/>
<!-- <hello></hello> -->
</div>
</template>
<script>
export default {
name: 'App',
data () {
return {
route : "This is main page"
}
}
}
</script>
router
import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '#/components/HelloWorld'
import Hello from '../components/Hello'
Vue.use(Router)
export default new Router({
routes: [
{
path: '/',
name: 'HelloWorld',
component: HelloWorld
},
{
path: '/hello',
name: 'Hello',
component: Hello
}
]
})
I have done something like this . Can we do this by just html , css , js file only with not webpack to compile code . Like we do in angular 1 .
Thanks
As stated in this jsFiddle: http://jsfiddle.net/posva/wtpuevc6/ , you have no obligation to use webpack or .vue files.
The code below is not from me and all credit goes to this jsFiddle creator:
Create an index.html file:
<script src="https://npmcdn.com/vue/dist/vue.js"></script>
<script src="https://npmcdn.com/vue-router/dist/vue-router.js"></script>
<script src="/js/Home.js"></script>
<script src="/js/Foo.js"></script>
<script src="/js/router.js"></script>
<script src="/js/index.js"></script>
<div id="app">
<router-link to="/">/home</router-link>
<router-link to="/foo">/foo</router-link>
<router-view></router-view>
</div>
Home.js
const Home = { template: '<div>Home</div>' }
Foo.js
const Foo = { template: '<div>Foo</div>' }
router.js
const router = new VueRouter({
mode: 'history',
routes: [
{ path: '/', component: Home },
{ path: '/foo', component: Foo }
]
})
index.js
new Vue({
router,
el: '#app',
data: {
msg: 'Hello World'
}
})
Appreciate the framework...
Just a sidenote: .vue files are really awesome, you should definitely try them if not using them is not a requirement
I have started learning vue.js also and I am not familiar with webpack and stuff and I also wanted to still separate and use .vue files as it makes management and code cleaner.
I have found this library:
https://github.com/FranckFreiburger/http-vue-loader
and a sample project using it:
https://github.com/kafkaca/vue-without-webpack
I am using it and it seems to work fine.
You perfectly can, but with a lot of disadvantages. For example: you cannot easily use any preprocessor, like Sass or Less; or TypeScript or transpile source code with Babel.
If you don't need support for older browser, you can use ES6 modules today. Almost all browsers support it. See: ES6-Module.
But Firefox doesn't support dynamic import(). Only Firefox 66 (Nightly) support it and need to be enabled.
And if that wasn't enough, your web application will not be indexed. It's bad for SEO.
For example, Googlebot can craw and index Javascript code but still uses older Chrome 41 for rendering, and it's version don't support ES6 modules.
If that are not disadvantages for you, then you can do this:
Remove any thirty party library import like Vue, VueRouter, etc. And include those in the index.html file using script tags. All global variables are accesible in all es6 modules. For example, remove this line from main.js and all .vue files:
import Vue from 'vue';
And add this line in your index.html:
<script src="https://npmcdn.com/vue/dist/vue.js"></script>
Rewrite all .vue files and change file extension to .js. For example, rewrite something like this:
<template>
<div id="home-page">
{{msg}}
</div>
</template>
<script>
export default {
data: function() {
return { msg: 'Put home page content here' };
}
}
</script>
<style>
#home-page {
color: blue;
}
</style>
to something like this:
let isMounted = false; /* Prevent duplicated styles in head tag */
export default {
template: `
<div id="home-page"> /* Put an "id" or "class" attribute to the root element of the component. Its important for styling. You can not use "scoped" attribute because there isn't a style tag. */
{{msg}}
</div>`,
mounted: function () {
if (!isMounted) {
let styleElem = document.createElement('style');
styleElem.textContent = `
#home-page {
color: blue;
}
`;
document.head.appendChild(styleElem);
isMounted = true;
}
},
data: function () {
return {
msg: 'Put home page content here'
};
}
}
It is all. I put an example in this link
P.S. Text editing without syntax highlighting can be frustrating. If you use Visual Studio Code you can install Template Literal Editor extension. It allows editing literal strings with syntax highlight. For styles select CSS syntax, and for templates HTML syntax. Unknown tag in HTML are highlighted differently. For solve this, change the color theme. For example, install Brackets Dark Pro color theme or any theme do you like.
Regards!
For sure you can. We did a project with Vue, and we had couple of problems during compiling .vue files.
So we switched to structure with three separate files.
But be aware that you need webpack anyway. The idea of Vue was to split huge projects into components, so using template inside .js file it's pretty normal.
So take a look at
html-loader
And
css-loader
Using these modules you can write something like this:
component.js
// For importing `css`. Read more in documentation above
import './component.css'
// For importing `html`. Read more in documentation above
const templateHtml = require('./component.html')
export default {
name: 'ComponentName',
components: { /* your components */ },
mixins: [/* your mixins */ ],
template: templateHtml,
computed: .....
}
component.css
#header {
color: red
}
component.html
<div id="header"></div>
BUT
You need to know that HTML file should be written in the same way as I you will have it in template property.
Also, take a look at this repo, maybe you will find something useful here
Vue-html-loader. It is a fork from html-loader by Vue core team.
In vuejs 3 you you can do it in an ES6 modular fashion (no webpack or other tools required):
index.html
<!DOCTYPE html>
<html>
<head>
<script type="importmap">
{
"imports": {
"vue": "https://unpkg.com/vue#3.0.11/dist/vue.esm-browser.js",
"vue-router": "https://unpkg.com/vue-router#4.0.5/dist/vue-router.esm-browser.js",
"html" : "/utils/html.js"
}
}
</script>
<script src="/main.js" type="module"></script>
</head>
<body>
<div id="app"></div>
</body>
</html>
main.js
import { createApp, h } from 'vue';
import {createRouter, createWebHashHistory} from 'vue-router';
import App from './components/App.js';
const routes = [//each import will be loaded when route is active
{ path: '/', component: ()=>import('./components/Home.js') },
{ path: '/about', component: ()=>import('./components/About.js') },
]
const router = createRouter({
history: createWebHashHistory(),
routes,
})
const app = createApp({
render: () => h(App),
});
app.use(router);
app.mount(`#app`);
components/App.js
import html from 'html';
export default {
name: `App`,
template: html`
<router-link to="/">Go to Home</router-link>
<router-link to="/about">Go to About</router-link>
<router-view></router-view>
`};
components/Home.js
import html from 'html';
export default {
template: html`
<div>Home</div>
`};
components/About.js
import html from 'html';
export default {
template: html`
<div>About</div>
`};
utils/html.js
// html`..` will render the same as `..`
// We just want to be able to add html in front of string literals to enable
// highlighting using lit-html vscode plugin.
export default function () {
arguments[0] = { raw: arguments[0] };
return String.raw(...arguments);
}
Notes:
Currently (04/2021) importmap works only on chrome (firefox in progress). To make the code compatible with other browsers also, just import (on each .js file) the dependencies directly from the urls. In this case though vue-router.esm-browser.js still imports 'vue', so you should serve an updated version of it, replacing import { .... } from 'vue' with import { .... } from 'https://unpkg.com/vue#3.0.11/dist/vue.esm-browser.js'
To avoid waterfall loading effect, you can add <link rel="modulepreload" href="[module-name]"> entries to index.html to start preloading some or all modules asynchronously before you need them.
A Related article
Vue can be included on a single html page quite simply:
Vue 3 minimal example:
<script src="https://unpkg.com/vue#3/dist/vue.global.js"></script>
<div id="app">{{ message }}</div>
<script>
const { createApp } = Vue
createApp({
data() {
return {
message: 'Hello Vue!'
}
}
}).mount('#app')
</script>
Vue 2 minimal example, with Vuetify
<!DOCTYPE html>
<html>
<head>
<link href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/#mdi/font#6.x/css/materialdesignicons.min.css" rel="stylesheet">
<link href="https://cdn.jsdelivr.net/npm/vuetify#2.x/dist/vuetify.min.css" rel="stylesheet">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, minimal-ui">
</head>
<body>
<div id="app">
<v-app>
<v-main>
<v-container>Hello world</v-container>
</v-main>
</v-app>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue#2.x/dist/vue.js"></script>
<script src="https://cdn.jsdelivr.net/npm/vuetify#2.x/dist/vuetify.js"></script>
<script>
new Vue({
el: '#app',
vuetify: new Vuetify(),
})
</script>
</body>
</html>
vue 2 guides:
https://v2.vuejs.org/v2/guide/installation.html#CDN
https://vuetifyjs.com/en/getting-started/installation/#usage-with-cdn
vue 3 guide: https://v2.vuejs.org/v2/guide/installation.html#CDN
I am trying to mix vuejs single file components with the normal style of components (not sure what they are called) which I have existing code developed for already.
main.js
import Vue from 'vue'
import test from './test.vue'
import VueMaterial from 'vue-material'
Vue.use(VueMaterial)
new Vue({
el: '#app',
render: h => h(test,
{props: {
testprop: 'ttttt'
}
}),
data:{
// /testprop: 'tytytytyty'
}
})
test.vue
<template>
<div>
<my-component></my-component>
<div>This is the first single page component</div>
</div>
</template>
<script>
import MyComponent from '../src/components/MyComponent.js'
import TestTest from '../src/components/TestTest.vue'
export default {
name: 'MainApp',
props: ['testprop'],
components: {
TestTest,
MyComponent
},
mounted: function(){
},
computed:{
returnProp: function(){
return this.testprop
}
}
}
</script>
<style lang="scss" scoped>
.md-menu {
margin: 24px;
}
</style>
MyComponent.js Normal style component
window.Vue = require('Vue') //would give errors vue undefined if i dont't add this line
Vue.component('my-component', {
name: 'my-component',
template: '<div>Normal component</div>'
})
index.html
<html lang="en">
<head>
<meta charset="utf-8">
<meta content="width=device-width,initial-scale=1,minimal-ui" name="viewport">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500,700,400italic|Material+Icons">
<link rel="stylesheet" href="https://unpkg.com/vue-material#beta/dist/vue-material.min.css">
<link rel="stylesheet" href="https://unpkg.com/vue-material#beta/dist/theme/default.css">
<title>vuematerial</title>
</head>
<body>
<div id="app">
<main-app :testprop="testprop"></main-app>
</div>
<script src="dist/build.js"></script>
</body>
</html>
The single file component and a child single file component (not showed here) display fine. The normal type will show up as
<!--function (t,n,r,i){return Mt(e,t,n,r,i,!0)}-->
In the generated html.
Iv'e also tried doing the MyComponent import in the main.js file.
Any ideas?
I don't really want to convert all my existing components into single file ones :(
According to the docs, a child component is an object, not something attached to the Vue instance (i.e Vue.component()) so declare your component like this:
MyComponent.js
export default {
name: 'my-component',
template: '<div>Normal component</div>'
}
If you want to keep the format of MyComponent as is then you'll need to register the component before the new Vue call.