I can print the image URL, but I can't get the img tag to display it, though I think I've bound it correctly.
<html>
<head>
<title>Split VueJS Demo</title>
<script type="importmap">
{
"imports": {
"vue": "https://unpkg.com/vue#3/dist/vue.esm-browser.js"
}
}
</script>
<script type="module">
import { createApp } from 'vue'
createApp({
data() {
return {
image: 'http://www.cortazar-split.com/dog_origin.jpeg'
}
}
}).mount('#app');
</script>
</head>
<body>
<div>
<div id="app">{{ image }}</div>
<img id="app" :src="image"/>
</div>
</body>
</html>
Why doesn't the img tag render the image at the provided URL?
You need to move the img tag inside the div with id="app".
You should never have the same id name used twice in your markup.
The mount method will use the first one found in your markup and ignore any subsequent elements with the same id name.
<html>
<head>
<title>Split VueJS Demo</title>
<script type="importmap">
{
"imports": {
"vue": "https://unpkg.com/vue#3/dist/vue.esm-browser.js"
}
}
</script>
<script type="module">
import { createApp } from 'vue'
const data = {
image: 'http://www.cortazar-split.com/dog_origin.jpeg'
}
console.log(data);
createApp({
data() {
return data;
}
}).mount('#app');
</script>
</head>
<body>
<div>
<div id="app">
{{ image }}
<img :src="image"/>
</div>
<!-- This is outside the scope of the app: -->
<!-- <img id="app" :src="image"/> -->
</div>
</body>
</html>
Related
I have two files created in LWC OSS app
first file at src/client/index.html and src/client/index.js
second file at src/client/index2.html and src/client/index2.js
I want to navigate to index2.html when clicked on the button in my-app (LWC component) which is appended using index.js
Am new to express js and node js. Please help!
Below is the code of the files,
index.html (File location: src/client/index.html)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>My LWC App</title>
<style>
body {
font-family: Arial, Helvetica, sans-serif;
}
</style>
<!-- Block zoom -->
<meta
name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1"
/>
<link rel="shortcut icon" href="./resources/favicon.ico" />
</head>
<body>
<div id="main"></div>
</body>
</html>
index.js (File location: src/client/index.js)
import { createElement } from 'lwc';
import MyApp from 'my/app';
const app = createElement('my-app', { is: MyApp });
// eslint-disable-next-line #lwc/lwc/no-document-query
document.querySelector('#main').appendChild(app);
app.html (File location: src/client/modules/my/app/app.html)
<template>
<!-- LWC sample component <my-greeting> -->
<div class="center greeting">
<!-- <my-greeting speed="slow"></my-greeting> -->
<my-greeting speed="medium"></my-greeting>
<!-- <my-greeting speed="fast"></my-greeting> -->
</div>
<div class="center">
<img src="./resources/lwc.png" />
</div>
<!-- Page code -->
<div class="center">
<div class="container">
<!-- prettier-ignore -->
<p class="info">
Edit <strong class="code">src/client/modules/my/app/app.html</strong>
<br />and save for live reload.
</p>
</div>
<div>
Learn LWC
<button onclick={redirect}>Click to redirect</button>
</div>
</div>
</template>
app.js (File location: src/client/modules/my/app/app.js)
import { LightningElement } from 'lwc';
export default class App extends LightningElement {
redirect(){
//code for to navigate to index2.html
}
}
index2.html (File Location: src/client/index2.html)
<html lang="en">
<body>
<div id="main"></div>
</body>
</html>
index2.js (File Location: src/client/index2.js)
import { createElement } from 'lwc';
import MyNewApp from 'my/newApp';
const app = createElement('my-app', { is: MyNewApp });
// eslint-disable-next-line #lwc/lwc/no-document-query
document.querySelector('#main').appendChild(app);
7.newApp.html (File location: src/client/modules/my/newApp/newApp.html)
<template>
<h1> Redirected to index2 --> newApp </h1>
</template>
Please let me know if you need more information.
Thanks,
Navaprasad
I watched a video lesson on vueschool and repeated the code as the teacher. But it doesn't work for me, and it works for him. In the browser console, it shows that there is no template indexer, but why does it all work?
HTML:
<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
<div id="app">
<p>Просто текст</p>
<click-counter></click-counter>
<click-counter></click-counter>
<click-counter></click-counter>
</div>
<script scr="vue.js"></script>
<script src="app.js"></script>
</body>
</html>
vue js
Vue.component ('click-counter', {
template: "<button #click="count++">{{count}}</button>",
data() {
return {
count: 0
}
}
})
new Vue ({
el: "#app"
})
In the component template, please use ' quotes to wrap the click function. Since you are using double quotes to wrap button, the same cannot be used in it which tends to close the first one.
Please find below the code
Vue.component('click-counter', {
template: "<button #click='count++'>{{count}}</button>",
data() {
return {
count: 0
}
}
})
new Vue({
el: "#app"
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.0/vue.js"></script>
<div id="app">
<click-counter/>
</div>
Change this line:
"<button #click="count++">{{count}}</button>"
Give this:
"<button #click='count++'>{{count}}</button>"
Make sure that, you have import vuejs in your file.
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
my VueJS/Laravel application does not load in GoogleMaps properly as I would expect. I dont understand why the callback is not called. The function is available and it should load. can you help me? I do not find my mistake. I dont expect to see the map yet as I only have a consol.log in the init, but even this is not called. The error message when I open the full google URL is:
The Google Maps API server rejected your request. Invalid request.
Invalid 'callback' parameter.
<script src="https://maps.googleapis.com/maps/api/js?key=KEY&libraries=places,geometry&callback=App.init async defer"></script>
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>INSPINIA - #yield('title') </title>
<link rel="stylesheet" href="{!! asset('css/vendor.css') !!}" />
<link rel="stylesheet" href="{!! asset('css/app.css') !!}" />
</head>
<body>
<!-- Wrapper-->
<div id="wrapper">
<!-- Navigation -->
#include('layouts.navigation')
<!-- Page wraper -->
<div id="page-wrapper" class="gray-bg">
<!-- Page wrapper -->
#include('layouts.topnavbar')
<!-- Main view -->
#yield('content')
<!-- Footer -->
#include('layouts.footer')
</div>
<!-- End page wrapper-->
</div>
<!-- End wrapper-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.3.0/vue.min.js"></script>
<script src="{!! asset('js/app.js') !!}" type="text/javascript"></script>
<script src="{!! asset('js/main.js') !!}" type="text/javascript"></script>
<script src="https://maps.googleapis.com/maps/api/js?key=KEY&libraries=places,geometry&callback=App.init async defer"></script>
#section('scripts')
#show
</body>
</html>
Main JS
const GISView = require('./components/GISView.vue');
window.Vue = Vue;
window.Event = new class {
constructor() {
this.Vue = new Vue();
}
fire(event, data = null) {
this.Vue.$emit(event, data);
}
listen(event, callback) {
this.Vue.$on(event, callback);
}
};
var App = window.App = new Vue({
el: '#app',
components: {
GISView: GISView
},
data: {},
methods: {
init: function() {
console.log("OK");
}
}
});
GIS VUE
<template>
<div id="map"></div>
</template>
<script>
import GoogleMaps from '../mixins/GoogleMaps.js';
export default {
mixins: [GoogleMaps],
data: {
test: 1
},
mounted() {
this.initMap();
},
methods: {
initMap: function() {
this.map = new google.maps.Map(document.getElementById('map'), {
center: { lat: 83.298, lng: 35.555},
scollwheel: false,
zoom: 4
})
}
}
}
</script>
#map {height:300px;width:500px;}
Change
<script src="https://maps.googleapis.com/maps/api/js?key=KEY&libraries=places,geometry&callback=App.init async defer"></script>
To
<script src="https://maps.googleapis.com/maps/api/js?key=KEY&libraries=places,geometry&callback=App.init" async defer ></script>
And please make sure your API key is not KEY ;)
The only change is moving the async and defer to outside of the API URL
I'm creating a slider web component from scratch to learn.
I want the button to hide when the attribute controlVisible is false and show when it's true, but my selector $('#botaoVoltar') doesn't get anything.
What am I missing?
index.html:
<body>
<slider-js controlVisible='false' ></slider-js>
</body>
polymer.html:
<polymer-element name="slider-js">
<template>
<center>
<div id="container">
<div id="Buttons">
<button name="voltar" id="botaoVoltar"><<</button>
</div>
</div>
</center>
</template>
</polymer-element>
<script>
Polymer('slider-js', {
controlVisible: false,
ready: function () {
if (this.controlVisible === false) {
$('#botaoVoltar').hide();
} else {
$('#botaoVoltar').show();
}
}
});
</script>
The attribute is working fine. If I console.log it, I can see if it is true or false, but the template still renders with the button.
jQuery can't get at Polymer's local DOM, so you'd have to use Polymer's own DOM API. Actually, Polymer's automatic node finding provides quick access to nodes that have IDs with this.$. For instance, you could access the botaoVoltar button in your example with this.$.botaoVoltar.
It looks like you're using old Polymer (pre 1.0). You should switch to the latest version of Polymer (1.5.0). Here's your code upgraded to the newest Polymer version:
<head>
<base href="https://polygit.org/polymer+1.5.0/components/">
<script src="webcomponentsjs/webcomponents-lite.min.js"></script>
<link rel="import" href="polymer/polymer.html">
</head>
<body>
<span>With control-visible:</span>
<x-slider control-visible></x-slider>
<span>Without control-visible:</span>
<x-slider></x-slider>
<!-- Normally, you would define this element in its own file. -->
<dom-module id="x-slider">
<template>
<div id="container">
<div id="Buttons">
<button id="botaoVoltar"><<</button>
<button>>></button>
</div>
</div>
</template>
<script>
HTMLImports.whenReady(function() {
Polymer({
is: 'x-slider',
properties : {
controlVisible: {
type: Boolean,
value: false
}
},
ready: function() {
this.$.botaoVoltar.hidden = !this.controlVisible;
}
});
});
</script>
</dom-module>
</body>
codepen
I got an error when I want try to add a component into a div DOM in another component.
Uncaught Error: Assertion Failed: You cannot append to an existing Ember.View. Consider using Ember.ContainerView instead.
here is my JSBin
App = Ember.Application.create();
App.MyListComponent= Ember.Component.extend({
layoutName:'my-list',
actions:{
addItem:function(){
console.log("add item action");
App.MyListItemComponent.create().appendTo("#holder");
},
},
});
App.MyListItemComponent= Ember.Component.extend({
layoutName:'my-list-item',
});
html, body {
margin: 20px;
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Ember Starter Kit</title>
<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/normalize/3.0.1/normalize.css">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="http://builds.emberjs.com/release/ember-template-compiler.js"></script>
<script src="http://builds.emberjs.com/release/ember.debug.js"></script>
</head>
<body>
<script type="text/x-handlebars">
<h2>Welcome to Ember.js</h2>
{{outlet}}
</script>
<script type="text/x-handlebars" data-template-name="index">
{{my-list}}
</script>
<script type="text/x-handlebars" id="my-list">
<button {{action "addItem"}}>add item</button>
This is a holder:
<div id="holder">
i am inside holder
</div>
This is static item:
{{my-list-item}}
</script>
<script type="text/x-handlebars" id="my-list-item">
i am a list item
</script>
</body>
</html>
can you have a look and tell me how to do?
thank you very much
I dont think, your approach is right.
A component should be working independently from the context in which it is added. You can pass anything as argument to the component within the template. I would recommend displaying the components depending on some type of model that is added with each addItem click (in my example, a simple text).
Why don't you try it this way:
JS
App = Ember.Application.create();
App.MyListComponent= Ember.Component.extend({
components: Ember.A([]),
layoutName:'my-list',
actions:{
addItem:function(){
var components = this.get('components');
console.log(components);
components.pushObject ('test'); // or whatever you want: could also be components.pushObject(App.MyListItemComponent.create()); if you want to use it later somehow.
this.set('components', components);
console.log("add item action");
},
},
});
App.MyListItemComponent= Ember.Component.extend({
layoutName:'my-list-item',
});
html
<script type="text/x-handlebars" id="my-list">
<button {{action "addItem"}}>add item</button>
This is a holder:
<div id="holder">
i am inside holder {{components.length}}
{{#each components as |item|}}
{{my-list-item}}
{{/each}}
</div>
This is static item:
{{my-list-item}}