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>
Related
I'm making a desktop program with Python Eel. I'm having a trouble. My code is very simple.
main.py:
import sqlite3, eel
eel.init('UI')
#eel.expose
def get_data():
return "I got it"
eel.start('index.html')
index.html:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="./vendor/bootstrap.css">
<title>Müşteri Takip</title>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-12 text-center">
<h2 id="hh2">degiscen mi!</h2>
<input id="buton" type="button" value="Button">
</div>
</div>
</div>
</body>
<script type="text/javascript" src="/eel.js"></script>
<script src="./vendor/jquery.js"></script>
<script src="index.js"></script>
</html>
index.js:
async function yo() {
document.getElementById('hh2').innerHTML = eel.get_data()();
}
$('#buton').click(function() {
yo();
})
But when I click button, this is what it changes to:
Why is this happening? It is super simple code.
The issue is that "eel.get_data()" returns a promise and not the desired value. To fix this, you must use the ".then()" method to wait for the promise to resolve and then assign its value to "hh2". Here's the corrected code:
index.js:
async function yo() {
eel.get_data().then(function(data) {
document.getElementById('hh2').innerHTML = data;
});
}
$('#buton').click(function() {
yo();
})
Best!
I followed this Vuejs video tutorial : https://laracasts.com/series/learn-vue-2-step-by-step/episodes/9?autoplay=true
My HTML seems like him (except his design) :
<div id="app">
<message title="My Component title" body="Lorem ipsum dry"></message>
</div>
Then my vuejs code :
<script type="text/javascript" src="{{ asset('js/vue.js') }}"></script>
<script>
new Vue({
el: '#app',
delimiters: ['${', '}']
});
Vue.component('message', {
props: ['title', 'body'],
template: `
<article class="message">
<div class="message-header">
${title}
</div>
<div class="message-body">
${body}
</div>
</article>
`
});
</script>
I changed Vuejs variable delimiters because it's a twig template file.
Inspecting the source code in the browser, the HTML code is not replaced by the code defined in the template... I don't see why.
You are declaring your template using JavaScript template strings (`).
You need to escape ${ in template strings, because they have specific meaning for them. Escape like: \${
Also, you need to declare the delimiters on the component itself.
JSBin demo: http://jsbin.com/notocozepi/edit?html,js,output
Source:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>JS Bin</title>
</head>
<body>
<div id="app">
<message title="My Component title" body="Lorem ipsum dry"></message>
</div>
<script type="text/javascript" src="https://unpkg.com/vue"></script>
<script>
Vue.component('message', {
props: ['title', 'body'],
delimiters: ['${', '}'],
template: `
<article class="message">
<div class="message-header">
\${title}
</div>
<div class="message-body">
\${body}
</div>
</article>
`
});
new Vue({
el: '#app',
delimiters: ['${', '}']
});
</script>
</body>
</html>
One last note: mind the order. The components must be defined before they are used.
I am attempting to dynamically create some HTML content and bind a Vue component method to an event on the element. However this does not work. Below is a description of the problem and a snippet with a test case.
Steps to reproduce problem
Click Click me 1
Observe the console.
Click Toggle popover for tooltip.
Click Click me 2
Observe the console.
Expected behaviour
In Step 2 you should see "you should see this in the console" in the console. In Step 5 you should see "you should see this in the console" again.
Actual behaviour
In Step 2, "you should see this in the console" appears in the console. In Step 5, "you should see this in the console" does not appear in the console.
new Vue({
el: '#app',
methods: {
expectToSucceed() {
console.log('you should see this in the console');
},
},
created() {
$(document).ready(() => {
const mockedDynamicHtml = `
<div class="popover">
<h1>Example tooltip</h1>
<button #click="expectToSucceed" class="remove">Click me 2</button>
</div>
`;
$('[data-toggle="popover"]').popover({
html: true,
template: mockedDynamicHtml,
});
});
},
});
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
<title></title>
</head>
<body>
<div id="app">
Toggle popover for tooltip
<br><br>
<p><span #click="expectToSucceed">Click me 1</span></p>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://unpkg.com/vue/dist/vue.js"></script>
</body>
</html>
It will be #click, like this:
<i #click="test"></i>
as shorthand of v-on is # not :.
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}}
I am new in Angular, so I choose Angular2.
I was following official guide here
Here is code
index.html
<!DOCTYPE html>
<html>
<head>
<script src="https://code.angularjs.org/2.0.0-alpha.34/angular2.sfx.dev.js"></script>
<script src="app.js"></script>
</head>
<body>
<my-app></my-app>
</body>
</html>
app.js
var AppComponent = ng
.Component({
selector: 'my-app'
})
.View({
template: '<h1 id="output">My First Angular 2 App</h1>'
})
.Class({
constructor: function () { }
});
Then I type live-server --port=8000, but it display nothing.
You need to check if DOM is ready with DOMContentLoaded first and then Bootstrap the app.
Official Angular 2.0 has mentioned to bootstrap.
Also as Jorg said:
"Angular 2 is currently in Developer Preview. We recommend using Angular 1.X for production applications"
HTML:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="style.css" />
<script src="https://code.angularjs.org/2.0.0-alpha.37/angular2.sfx.dev.js"></script>
<script src="main.js"></script>
</head>
<body>
<my-app></my-app>
</body>
</html>
Javascript (ES5):
var AppComponent = ng
.Component({
selector: 'my-app'
})
.View({
template: '<h1 id="output">My First Angular 2 App</h1>'
})
.Class({
constructor: function () { }
});
document.addEventListener('DOMContentLoaded', function() {
ng.bootstrap(AppComponent);
});
Plunker Here
can you add ng.bootstrap(AppComponent, []); to the bottom on app.js and update your angular version to
<script src="https://code.angularjs.org/2.0.0-alpha.37/angular2.sfx.dev.js"></script>