I want to have a dynamic/async component which will be loaded based on menu click. There will be a lot of links and components.
My problem is :
Cannot find test-component even I registered globally using Vue.Component
Can the component1 in root be changed? If it is possible, I will call component file using Ajax.
Thanks in advance.
Index.html
<script src="~/bundle/site.js"></script>
<div id="app">
<input type="button" v-on:click="changeComponent('test-component')" value="Click me"/>
<component v-bind:is="view"></component>
</div>
site.js
import Vue from 'vue';
import axios from 'axios';
global.Vue = Vue;
global.axios = axios;
var vm = new Vue({
el: '#app',
data: {
view: 'component1'
},
components: {
'component1': {
template: '<div>Dynamic Component master</div>'
}
},
methods: {
changeComponent: function (parComp) {
this.component1 = parComp;
},
}
});
Vue.component('test-component', {
template: '<div v-on:click = "changeName()"><h1>{{msg}}</h1></div>',
data: function () {
return {
msg: "Test Componet"
}
},
methods: {
changeName: function () {
this.msg = "mouse clicked";
},
}
})
Update
change vm = new Vue().... to global.vm = new Vue().....
call vm.changeComponent('test-component')
It works now.
Vue.options.components["test-component"] can access it.
But test-component cannot be access in html like :
<test-component></test-component>
The problem solved by :
change vm = new Vue().... to global.vm = new Vue().....
declare Vue.component('test-component'.... before new Vue()
Thanks
Wilson
Related
One of my root Vue.js components is using an x-template, displayed in 3 different parts of my app (3 separate Vue instances).
Everything is working if I put the data directly into the component, but I can’t figure out how to pass in data to each individual vm instance. Here’s what I’m using at present:
Vue.component('some-table', {
template: '#some-template',
data() {
return { someArray: [] }
},
methods: {
}
});
let someVm = new Vue({
el: '#some-div',
});
The template:
<script id="some-template" type="text/x-template">
<table v-for="(item, id) in someArray" v-bind:key="id">
<tr>
<td>{{item.someKey}}</td>
</tr>
</table>
</div>
</script>
Within another JavaScript class, I’m attempting to push data to someArray:
class SomeClass {
constructor() {
}
someMethod() {
let newData = [1,2,3];
someVm.someArray = newData; // doesn't work
someVm.someArray.push(...newData); // doesn't work
someVm.someArray.concat(newData); // doesn't work
}
}
Using any of the various lines in someMethod() above, I can see someVm contains someArray, but with no observers.
I can’t seem to figure out how to push new data to each instance, then be accessible within some-template. I’m obviously missing something really simple, but I’ve been stuck on this for a while now, so any pointers would be amazing!
Thanks!
Do not set data attr at component registration (Vue.component(...)). Instead, declare the props that component uses and pass it through markup or js.
Vue.config.productionTip = false;
Vue.config.devtools = false;
Vue.component('some-component', {
template: '#some-component',
props: {
message: {
type: String, // declare the props: https://vuejs.org/v2/api/#props
}
}
});
const cp1 = new Vue({
el: '#cp1',
data() {
return {
msg: "using data"
};
}
});
const cp2 = new Vue({
el: '#cp2'
});
const cp3 = new Vue({
el: '#cp3'
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<script id="some-component" type="text/x-template">
<p>{{message}}</p>
</script>
<div id="cp1">
<some-component :message="msg"></some-component>
</div>
<div id="cp2">
<some-component message="using props"></some-component>
</div>
<div id="cp3" is="some-component" message="using props and is"></div>
I have this vue js component:
<template>
<div>
hello world
</div>
</template>
<script>
export default {
name: 'mycomp',
data: function () {
console.error("window.google_recaptcha_public_key", window.google_recaptcha_public_key);
return {
}
},
mounted() {
let app = this;
console.error("window.google_recaptcha_public_key2", window.google_recaptcha_public_key);
},
}
</script>
<style scoped lang="scss">
</style>
returns:
window.google_recaptcha_public_key undefined
window.google_recaptcha_public_key2 undefined
where can I leave painless and happy all global configuration?
notice this configuration lives in my laravel backend. So I wont copy paste all values from the backend to the front end
U can use Vue.prototype in main.js file, or in file you import Vue
Vue.prototype.Hereanyname = window.hereanyname;
and in your Vue application, you can use it
Hereanyname.thefunction
Real example on Laravel
in main.js
import Vue from 'vue';
Vue.prototype.Routes = window.routes;
new Vue({
el: '#app',
template: '<App/>',
components: {App}
});
in your application
:href="Routes.route('laravel.route.here')"
So for your case
import Vue from 'vue';
Vue.prototype.GoogleRecaptcha = window.google_recaptcha_public_key;
new Vue({
el: '#app',
template: '<App/>',
components: {App}
});
inside application
mounted() {
console.log(this.GoogleRecaptcha)
}
In Vue3, you no longer have the global Vue instance, so you need to assign the window as a global property on your app...
// main.js
app.config.globalProperties.window = window
Then in your components, window will just work.
This info is from an impeccable source.
You should save your window variable in Vue.prototype
main.js
Vue.prototype.$authUser = window.authUser;
After that, you can access your data as follows:
Vue template
<div v-text="$authUser.name"></div>
Vue script
let name = this.$authUser.name;
window is available in the vuex store. This may help if you need to mutate the window property synchronously with other actions/mutations, give you a chance to validate what goes into it, or catch an error if the variable you intend to put there isn't available.
export default new Vuex.store({
state: {
windowFoo: window.foo,
googleRecaptcha: window.google_recaptcha_public_key
},
getters: {
windowFoo: (state) => state.windowFoo,
googleRecaptcha: (state) => state.googleRecaptcha
},
actions: {
barThenFooThenBaz({ commit }, { foo }) {
// ... do some other required actions first
commit("setWindowFoo", foo);
// ... do some dependent actions next
}
},
mutations: {
setWindowFoo(state, foo) {
state.windowFoo = foo;
}
}
});
Then from your Single File Component...
//....
computed: {
windowFoo() {
return this.$store.getters.windowFoo;
},
googleRecaptcha() {
return this.$store.getters.googleRecaptcha;
}
},
methods: {
async barThenFooThenBaz(foo) {
await this.$store.dispatch({
type: "barThenFooThenBaz",
foo: foo
});
// ... do something dependent on windowFoo being set
}
}
//....
Although the other answers here are totally acceptable, I've had issues using the Vue instance with Vue.prototype in main.js as our project has gotten larger, so I hope this helps!
Provide/Inject works nicely. Here's an example with Vue 3:
main.js
const app = createApp(App)
app.provide('recaptcha_key', window.google_recaptcha_public_key)
app.mount('#app')
MyComponent.vue
<script setup>
const { inject } from 'vue'
const recaptchaKey = inject('recaptcha_key')
</script>
I put $testCounter in a plugin to make it global :
Vue.use({
install(Vue) {
Vue.prototype.$testCounter = 0;
Vue.prototype.$incrementCounter = () => {
Vue.prototype.$testCounter++;
};
});
I want to output it in some component. I also need its value to be updated globally, and reactively :
<template>
<p>{{ $testCounter }}</p>
</template>
<script>
mounted() {
let comp = this;
comp.watcherId = setInterval(() => {
comp.$incrementCounter();
// I want to remove this line and still be reactive :
comp.$forceUpdate();
}, 1000);
}
</script>
I need the property to be reactive, I tried a multiple solution as watchers, computed props, vm.$set(...), but I can't find the right way to do this.
Solution 1: use Vuex
Solution 2: set the global reactive data in root component and use it by calling this.$root
demo: https://jsfiddle.net/jacobgoh101/mdt4673d/2/
HTML
<div id="app">
<test1>
{{$root.testCounter}}
</test1>
</div>
Javascript
Vue.component('test1', {
template: `
<div>
test1
<slot></slot>
</div>
`,
mounted() {
setInterval(() => {
this.$root.incrementCounter();
}, 1000)
}
});
new Vue({
el: "#app",
data: {
testCounter: 1
},
methods: {
incrementCounter: function() {
this.testCounter++;
}
}
})
I am trying to integrate Phaser 3 with Vue.js 2.
My goal is to create a Vue.js component associated with a game canvas.
My initial solution was:
<template>
<div :id="id">
</div>
</template>
<script>
import Phaser from 'phaser'
export default {
data () {
return {
id: null,
game: null
}
},
mounted () {
this.id = 'game' + this._uid
var config = {
parent: this.id,
type: Phaser.CANVAS
}
this.game = new Phaser.Game(config)
....
}
}
</script>
This code attach the game canvas to my template. But to my surprise it only worked 'sometimes'.
I figured out, after hours of debugging, that my div element in the DOM wasn't updated with the id when I was instantiating my new Game.
So I came up with the solution of instantiating the id in the beforeMount () method as follow:
<template>
<div :id="id">
</div>
</template>
<script>
import Phaser from 'phaser'
export default {
data () {
return {
id: null,
game: null
}
},
beforeMount () {
this.id = 'game' + this._uid
},
mounted () {
var config = {
parent: this.id,
type: Phaser.CANVAS
}
this.game = new Phaser.Game(config)
....
}
}
</script>
It is working, but I would like to know if there is a more simple and elegant solution ?
One better solution for integrating Phaser.Game into the application is directly passing the config the HTML element, a configuration supported by Phaser.Game.
To get a reference to a HTML element in vue, you can use refs, these are basically id's, but local to the component itself, so there is not risk in creating conflicts.
<template>
<div ref="myDiv">
</div>
</template>
<script>
import Phaser from 'phaser'
export default {
data () {
return {
game: null
}
},
mounted () {
var config = {
parent: this.$refs.myDiv,
type: Phaser.CANVAS
}
this.game = new Phaser.Game(config)
....
}
}
</script>
Vue3 sample:
<script setup>
import { ref,onMounted } from 'vue';
import Phaser from 'phaser'
const myDiv = ref(null)
let canvasWidth = 750;
let canvasHeight = 1450;
onMounted(() => {
const config = {
type: Phaser.AUTO,
parent: popWrap.value,
width: canvasWidth,
height: canvasHeight,
scene: {
preload: preload,
create: create,
update: update
}
};
const game = new Phaser.Game(config);
})
</script>
<template>
<div ref="myDiv">
</div>
</template>
I am trying to trigger a modal from the materializecss framework within a VueJS-instance.
Both, VueJS and Materializecss, are implemented correct. On their own both frameworks work fine.
Clicking the open-button results in an error:
Uncaught TypeError: data[option] is not a function
at HTMLDivElement. (adminarea.js:24562)
at Function.each (adminarea.js:10567)
at jQuery.fn.init.each (adminarea.js:10356)
at jQuery.fn.init.Plugin [as modal] (adminarea.js:24556)
at Vue$3.showLoader (adminarea.js:21396)
at boundFn (adminarea.js:54956)
at HTMLButtonElement.invoker (adminarea.js:56467)
This is my Vue-Instance:
const app = new Vue({
el: '#app',
data: {
activeUser: {
username: '',
email: ''
},
},
methods: {
showLoader(){
$('#loaderModal').modal('open');
},
closeLoader(){
$('#loaderModal').modal('close');
}
},
mounted() {
// Get current User
axios.get('/api/currentUser')
.then(response => {
this.activeUser.username = response.data.username;
this.activeUser.email = response.data.email;
});
},
components: {
Admindashboard
}
});
And here is the part of my html-file with the modal structure:
<!-- Modal Structure -->
<div id="loaderModal" class="modal">
<div class="modal-content">
<h4>Fetching data..</h4>
<div class="progress">
<div class="indeterminate"></div>
</div>
</div>
</div>
<button class="btn cyan waves-effect waves-cyan" v-on:click="showLoader">Open</button>
Any ideas? Thanks!
It seems I found an solution:
Nice to know for Laravel-users: for my current project I use Laravel 5.5 with Materializecss, VueJS and VueRouter but I think the solution is universal. Materializecss was installed via npm and has to be included into your application. I've required the css-framework within my ressources/assets/js/bootstrap.js:
...// more code
try {
window.$ = window.jQuery = require('jquery');
window.materialize = require('materialize-css');
} catch (e) {
console.log(e);
}
...// more code
Now you have to initialize the Modal-function on the mounted-event of your wrapping Vue-instance:
const app = new Vue({
router,
data: {
...
},
methods: {
testClick: function(){
console.log('Testklick-Call');
$('#modal1').modal('open');
}
},
mounted: function(){
console.log('Instance mounted');
$('.modal').modal();
}
}).$mount('#app');
The code above is placed within my ressources/assets/js/app.js and is packed by default by Laravel Mix but I think this is universal and also usable without Laravel Mix/Webpack etc.
Now you can call every modal programmatically from where ever you want. I've tested it in my main instance on a click-event. Function is placed in my Vue-instance (see above). HTML-Code see below:
<button v-on:click="testClick">Open Modal</button>
But you can also make use of the modal within a mounted-function or any other function of any component:
<template>
<div>
<p>I am an component!</p>
</div>
</template>
<script>
export default {
mounted() {
console.log('Component mounted!');
$('#modal1').modal('open');
}
}
</script>
This also works, if the component becomes only visible after clicked on a link (using VueRouter).
Hopefully this helps someone except me :)
As suggested here, you need to add following code in the mounted block:
mounted() {
$('#loaderModal').modal(); //New line to be added
// Get current User
axios.get('/api/currentUser')
.then(response => {
this.activeUser.username = response.data.username;
this.activeUser.email = response.data.email;
});
},