Javascript 文本/x形把手从未出现
我正在尝试开发我的第一个应用程序,但我无法让浏览器显示我的把手脚本 这是我的html:Javascript 文本/x形把手从未出现,javascript,html,ember.js,handlebars.js,Javascript,Html,Ember.js,Handlebars.js,我正在尝试开发我的第一个应用程序,但我无法让浏览器显示我的把手脚本 这是我的html: <!doctype html> <html> <head> <title>Random Presents</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="
<!doctype html>
<html>
<head>
<title>Random Presents</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="style.css">
<script src="lib/jquery.min.js"></script>
<script src="lib/handlebars.js"> </script>
<script src="lib/ember.js"></script>
<script src ="js/app.js"></script>
</head>
<body>
<script type="text/x-handlebars">
{{#view App.AView}}{{firstName}}{{/view}}
</script>
<script type="text/x-handlebars">
{{#view App.AView}}{{surname}}{{/view}}
</script>
</body>
</html>
当我加载文件时;页面是空的,即使源代码对应于我的html文件。
我在chrome javascript控制台中没有看到任何错误
有什么明显的东西我错过了吗?
我测试了这些库,它们直接来自网站,并且是最新版本
更糟糕的是,我甚至尝试使用只包含html的脚本,他也不会加载任何内容。在模板中,默认上下文是控制器,因此需要显式引用视图以访问其属性:
{{view.property}
在您的示例中:
{{#view App.AView}}{{view.surname}}{{/view}}
在模板中,默认上下文是控制器,因此需要显式引用视图以访问其属性:
{{view.property}
在您的示例中:
{{#view App.AView}}{{view.surname}}{{/view}}
因为您在
视图
类中创建了属性,所以您应该使用视图
属性,在某些情况下,该属性与this
关键字类似
将模板更改为:
<script type="text/x-handlebars">
{{#view App.AView}}
{{view.firstName}}
{{view.surname}}
{{/view}}
</script>
JavaScript:
<!--
when a template doesn't have a data-template-name, Ember assumes this is the
application main template. This is usually where you'd render the layout structure
and also where you'd put the main outlet
-->
<script type="text/x-handlebars">
<h1>Example</h1>
{{outlet}}
</script>
<!--
As per convention, a named template should match with its route name
There are ways around using "partial", "render", or even defining
a View class and setting the templateName property to a different name, or
using the route's renderTemplate hook
Another thing. You can have nested views when using nested routes
This view template has another outlet to display a person from the collection
-->
<script type="text/x-handlebars" data-template-name="people">
{{#each person in controller}}
{{#linkTo people.person person}}
{{person.fullName}}
{{/linkTo}}<br />
{{/each}}
<hr />
{{outlet}}
</script>
<!--
Unlike the very first code piece in this answer, when you have a view or
template connected to a controller, you can access the data from the controller
using handlebars expressions.
-->
<script type="text/x-handlebars" data-template-name="people/person">
First name: {{view Ember.TextField valueBinding="firstName"}}<br />
Last name: {{view Ember.TextField valueBinding="lastName"}}<br />
Full Name: {{fullName}}
</script>
window.App = Ember.Application.create();
// defining routes which are somewhat like states (think of a state machine)
// they also provide the ability to have hash urls
// the router is a very important piece of ember due to conventions
App.Router.map(function() {
// sample url ~/#/people
this.resource('people', function() {
// sample url ~/#/people/1
this.route('person', { path: ':person_id' });
});
});
// In this route we provide the data to the list view in "people" template
// the data will actually go to the controller 'content' property which can
// be a type of array for arraycontroller or a single object for object controller
// this should allow the view to call data from the controller
App.PeopleRoute = Em.Route.extend({
model: function() {
return App.Person.find()
}
});
// in this route we provide data for the "people/person" template
// In this case we are using the person id from the parameters to query our
// application store.
App.PeoplePersonRoute = Em.Route.extend({
model: function(params) {
return App.Person.find(params.person_id)
}
});
// This is the very first route of the application
// Most of the time, you'll simply redirect from your index to a resource
// in this example, from ~/#/ to ~/#/people
App.IndexRoute = Em.Route.extend({
redirect: function() {
this.transitionTo('people');
}
});
// The store manages your application data. Normally you only have to define
// the revision since it's not 1.0 yet (https://github.com/emberjs/data/blob/master/BREAKING_CHANGES.md)
// for this sample, I'm using the Fixture Adapter so I can add mock up data to the
// app while testing/coding front end
App.Store = DS.Store.extend({
revision: 11,
adapter: 'DS.FixtureAdapter'
});
// Using Ember-Data, you can define a Model object which uses application
// semantics to describe your data, and does many operations which you'd
// normally expect to see in a ORM. Ember-Data is no ORM, but it gets pretty close
// and in certain scenarios it goes beyond
App.Person = DS.Model.extend({
firstName: DS.attr('string'),
lastName: DS.attr('string'),
fullName: function() {
return '%@ %@'.fmt(
this.get('firstName'),
this.get('lastName')
);
}.property('firstName', 'lastName')
});
// Using the FixtureAdapter you can add mockup data to your data store
App.Person.FIXTURES = [
{id: 1, firstName: 'Joe', lastName: 'Bloggs'},
{id: 2, firstName: 'Other', lastName: 'Dude'}
];
// when your controller wants to handle a collection, use ArrayController
App.PeopleController = Em.ArrayController.extend();
// when it handles a single object, use ObjectController
App.PeoplePersonController = Em.ObjectController.extend();
因为您在
视图
类中创建了属性,所以应该使用视图
属性,在某些情况下,该属性与this
关键字类似
将模板更改为:
<script type="text/x-handlebars">
{{#view App.AView}}
{{view.firstName}}
{{view.surname}}
{{/view}}
</script>
JavaScript:
<!--
when a template doesn't have a data-template-name, Ember assumes this is the
application main template. This is usually where you'd render the layout structure
and also where you'd put the main outlet
-->
<script type="text/x-handlebars">
<h1>Example</h1>
{{outlet}}
</script>
<!--
As per convention, a named template should match with its route name
There are ways around using "partial", "render", or even defining
a View class and setting the templateName property to a different name, or
using the route's renderTemplate hook
Another thing. You can have nested views when using nested routes
This view template has another outlet to display a person from the collection
-->
<script type="text/x-handlebars" data-template-name="people">
{{#each person in controller}}
{{#linkTo people.person person}}
{{person.fullName}}
{{/linkTo}}<br />
{{/each}}
<hr />
{{outlet}}
</script>
<!--
Unlike the very first code piece in this answer, when you have a view or
template connected to a controller, you can access the data from the controller
using handlebars expressions.
-->
<script type="text/x-handlebars" data-template-name="people/person">
First name: {{view Ember.TextField valueBinding="firstName"}}<br />
Last name: {{view Ember.TextField valueBinding="lastName"}}<br />
Full Name: {{fullName}}
</script>
window.App = Ember.Application.create();
// defining routes which are somewhat like states (think of a state machine)
// they also provide the ability to have hash urls
// the router is a very important piece of ember due to conventions
App.Router.map(function() {
// sample url ~/#/people
this.resource('people', function() {
// sample url ~/#/people/1
this.route('person', { path: ':person_id' });
});
});
// In this route we provide the data to the list view in "people" template
// the data will actually go to the controller 'content' property which can
// be a type of array for arraycontroller or a single object for object controller
// this should allow the view to call data from the controller
App.PeopleRoute = Em.Route.extend({
model: function() {
return App.Person.find()
}
});
// in this route we provide data for the "people/person" template
// In this case we are using the person id from the parameters to query our
// application store.
App.PeoplePersonRoute = Em.Route.extend({
model: function(params) {
return App.Person.find(params.person_id)
}
});
// This is the very first route of the application
// Most of the time, you'll simply redirect from your index to a resource
// in this example, from ~/#/ to ~/#/people
App.IndexRoute = Em.Route.extend({
redirect: function() {
this.transitionTo('people');
}
});
// The store manages your application data. Normally you only have to define
// the revision since it's not 1.0 yet (https://github.com/emberjs/data/blob/master/BREAKING_CHANGES.md)
// for this sample, I'm using the Fixture Adapter so I can add mock up data to the
// app while testing/coding front end
App.Store = DS.Store.extend({
revision: 11,
adapter: 'DS.FixtureAdapter'
});
// Using Ember-Data, you can define a Model object which uses application
// semantics to describe your data, and does many operations which you'd
// normally expect to see in a ORM. Ember-Data is no ORM, but it gets pretty close
// and in certain scenarios it goes beyond
App.Person = DS.Model.extend({
firstName: DS.attr('string'),
lastName: DS.attr('string'),
fullName: function() {
return '%@ %@'.fmt(
this.get('firstName'),
this.get('lastName')
);
}.property('firstName', 'lastName')
});
// Using the FixtureAdapter you can add mockup data to your data store
App.Person.FIXTURES = [
{id: 1, firstName: 'Joe', lastName: 'Bloggs'},
{id: 2, firstName: 'Other', lastName: 'Dude'}
];
// when your controller wants to handle a collection, use ArrayController
App.PeopleController = Em.ArrayController.extend();
// when it handles a single object, use ObjectController
App.PeoplePersonController = Em.ObjectController.extend();
非常感谢你!我会深入研究的。事实上,我有一个带有模型和控制器的应用程序,但到目前为止,我的任何手柄脚本都无法显示任何内容,这就是我将其剥离的原因。我肯定会根据您的建议对其进行新的尝试!再次感谢您!我会深入研究的。事实上,我有一个带有模型和控制器的应用程序,但到目前为止,我的任何手柄脚本都无法显示任何内容,这就是我将其剥离的原因。我肯定会根据您的建议对其进行新的尝试!又是thx