I am new at using Handlebars, and I have simple question. I am trying to create table that contains a title and a text field next to it. When I try to place the textfields in the table, the textfields is placed on top of the table instead.
This is the code that I am using:
<!DOCTYPE html>
<html>
<head>
<title>Handlebars.js example</title>
</head>
<body>
<div id="placeholder">This will get replaced by handlebars.js</div>
<script type="text/javascript" src="handlebars-v1.3.0.js"></script>
<script id="myTemplate" type="text/x-handlebars-template">
<table>
{{#each names}}
<tr><th>{{name}}</th><input type="text"></tr>
{{/each}}
</table>
</script>
<script type="text/javascript">
var source = document.getElementById("myTemplate").innerHTML;
var template = Handlebars.compile(source);
var data = {
names: [
{ name: "foo",id:'id'},
{ name: "bar",id:'id' },
{ name: "baz",id:'id' }
]};
document.getElementById("placeholder").innerHTML = template(data);
</script>
</body>
</html>
What I am doing wrong?
Your table structure is bad. You're missing a tbody and your input is in a row, but not in a th or td.
Related
code below.
<html>
<head>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.charts.load('current', {packages:['wordtree']});
google.charts.setOnLoadCallback(drawChart);
function drawChart() {
var data = google.visualization.arrayToDataTable(
[ ['Phrases'],
['information technology'],
['web'],
['development']
]
);
var options = {
wordtree: {
format: 'implicit',
// word: ''
}
};
var chart = new google.visualization.WordTree(document.getElementById('wordtree_basic'));
chart.draw(data, options);
}
</script>
</head>
<body>
<div id="wordtree_basic" style="width: 900px; height: 500px;"></div>
</body>
</html>
issue:
expected three items to be rendered, however, we now have four including an erroneous "technology" while view source indicates correct rendering.
tested browser; firefox and chrome.
I just started to learn using Vue. I wrote really simple code like the following.
<!DOCTYPE HTML>
<html>
<head>
</head>
<body>
<script src="https://unpkg.com/vue"></script>
<div id="app">
<h2>{{number}}</h2>
<h2>Here it is!</h2>
</div>
</body>
<script type="text/javascript">
var app = new Vue({
el: '#app',
data: {
number:0
}
})
</script>
</html>
However, there is no number value.
But, when I open that code just by Ctrl+O on chrome, it shows succefully!
I definitely checked network by chrome dev tool and I got successfully vue.js from https://unpkg.com/vue#2.5.22/dist/vue.js What's wrong with it?
Loading the framework in the head is a good way to start.
See the example below, it works fine in here.
<!DOCTYPE HTML>
<html>
<head>
<script src="https://unpkg.com/vue"></script>
</head>
<body>
<div id="app">
<h2>{{number}}</h2>
<h2>Here it is!</h2>
<button #click="clk">click</button>
</div>
<script type="text/javascript">
var app = new Vue({
el: '#app',
data: {
number: 0
},
methods: {
clk(){
this.number++;
}
}
})
</script>
</body>
</html>
I thought you should return an object from a function for data.
data : function() {
return {
number : 0
};
}
I am new in Ember and trying to create a simple application based on the tutorial provided by Ember website and videos.
In the sample below I would like to display two tabs Tab1 and Tab2; when switching to Tab1 it should have "Jan" and "Feb"; when switching to Tab2 it should have "Mar" and "Apr". I can switch between tabs but there is no content in any of them, there are no errors in the console.
Please help me understand why the tab content is empty.
Thanks!
Here is my index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Ember test</title>
<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="css/style.css">
<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.no- icons.min.css" rel="stylesheet">
</head>
<body>
<script type="text/x-handlebars">
<div class="navbar">
<div class="navbar-inner">
<ul class="nav">
<li>{{#link-to 'tab1'}}Tab1{{/link-to}}</li>
<li>{{#link-to 'tab2'}}Tab2{{/link-to}}</li>
</ul>
</div>
</div>
{{outlet}}
</script>
<script type="text/x-handlebars" id="tab1">
<p>{{field1}}</p>
<p>{{field2}}</p>
</script>
<script type="text/x-handlebars" id="tab2">
<p>{{field3}}</p>
<p>{{field4}}</p>
</script>
<script src="js/libs/jquery-v1.11.1.js"></script>
<script src="js/libs/handlebars-v1.3.0.js"></script>
<script src="js/libs/ember-v1.6.1.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/showdown/0.3.1/showdown.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/moment.js/2.1.0/moment.min.js"></script>
<script src="js/app.js"></script>
</body>
</html>
Here is app.js
App = Ember.Application.create();
var tab1 = {
field1: "Jan",
field2: "Feb"
};
var tab2 = {
field3: "Mar",
field4: "Apr"
};
App.Router.map(function() {
this.resource('tab1');
this.resource('tab2');
});
App.tab1Route = Ember.Route.extend({
model: function() {
return tab1;
}
});
App.tab2Route = Ember.Route.extend({
model: function() {
return tab2;
}
});
Ember conventions mandate the name of the classes for your routes. Your Route classes must be named App.Tab1Route and App.Tab2Route, not App.tab1Route and App.tab2Route. The case of the class names is important.
The rest of your code seems fine!
I am just starting with the bare-bones starter kit, trying to do something very basic.
In my end result app, there will be a list of categories and subcategories that serve as the nav for the app. My solution being an Ember novice, and just to get something working, was to start with the tutorial by Tom Dale and try moving from there. So, I set up a variable to hold some dummy models to use just to get something on the screen.
When I try to run the app, I get the error Uncaught TypeError: Cannot set property 'dataSourceBinding' of undefined
EDIT--
I have tried moving the declaration of the categories variable to the top of the app.js file, but still get the same error.
My question is really two questions:
What am I missing/doing incorrectly?
I realize that ultimately setting up the app with the categories as a model on the index action is probably not the best approach. This list needs to be dynamic as it will be configurable by users. Is there a better way to have this dynamic nav included in the main template?
app.js:
MSSWApp = Ember.Application.create();
MSSWApp.Router.map(function() {
this.resource('categories', function() {
this.resource('category', { path: ':category_id' });
});
});
MSSWApp.IndexRoute = Ember.Route.extend({
model: function() {
return categories;
}
});
var categories = [{
id: 1,
title: "Auto & Mechanical"
}, {
id: 2,
title: "Beauty & Fashion"
}, {
id: 3,
title: "Careers & Education"
}];
index.html:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="initial-scale=1.0">
<title>Test Ember Model on Index</title>
<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="css/style.css">
</head>
<body>
<script type="text/x-handlebars">
<h1>Categories</h1>
<ul>
{{#each in model}}
<li>
<h2>
{{#link-to 'category' this}}
{{title}}
{{/link-to}}
</h2>
<ul>
<li>
Sub 1-1
</li>
<li>
Sub 1-2
</li>
<li>
Sub 1-3
</li>
</ul>
</li>
{{/each}}
</ul>
{{outlet}}
</script>
<script src="js/libs/jquery-1.10.2.js"></script>
<script src="js/libs/handlebars-1.1.2.js"></script>
<script src="js/libs/ember-1.5.1.js"></script>
<script src="js/app.js"></script>
<!-- to activate the test runner, add the "?test" query string parameter -->
<script src="tests/runner.js"></script>
</body>
</html>
Turns out that the template needs a name, otherwise Ember assumes that's the application template.
setting up the script tag like this:
<script type="text/x-handlebars" data-template-name="index">
did the trick
I'd like to define a block helper that puts the text in the block into a tag. I used an example from http://handlebarsjs.com/block_helpers.html as a start but my code doesn't work. What do I have to change to get test as the output of this block helper?
app.js
App = Ember.Application.create();
Handlebars.registerHelper('link', function(options) {
var result = '' + options.fn(this) + '';
return Handlebars.SafeString(result);
});
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<title>Example</title>
</head>
<body>
<script type="text/x-handlebars">
<p>
{{#link}}
test
{{/link}}
</p>
</script>
</body>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript" src="js/handlebars.js"></script>
<script type="text/javascript" src="js/ember.js"></script>
<script type="text/javascript" src="js/app.js"></script>
</html>
Just a couple of details (EDITED):
You just need to create a new instance of Handlebars.SafeString before returning it. Please check #muistooshort's jsfiddle here with a working example of what you are trying to achieve.
Block helpers are a little bit more complex and used when is needed to invoke a section of a template with a different context. If it is not your case, you could use the syntax for regular Handlebars helpers. (I'll leave the following code here for future reference, although it's not relevant in this case)
Declare helper in app.js:
Ember.Handlebars.registerHelper('link', function(value) {
var result = '' + value + '';
return new Handlebars.SafeString(result);
});
In index.html replace your current template with:
<script type="text/x-handlebars">
<p>
{{link test}}
</p>
</script>
Hope this helps!