我真的是新的 knockout.js。我想要实现的是限制 foreach 项目。这是我的来源:
<div data-bind="foreach: news">
<!-- ko if: catId === '4' -->
<div class="news-item">
<a data-bind="attr: { href: url, title: title }">
<div class="news-header-text" data-bind="text: title"></div>
</a>
<div class="news-date" data-bind="text: date" /></div>
</div>
<!-- /ko -->
</div>
这是我的 javascript:
(function()
{ // Wrap in function to prevent accidental globals
if(location.protocol != "data:")
{
$(window).bind('hashchange', function()
{
window.parent.handleChildIframeUrlChange(location.hash)
});
}
// Class to represent a row in the seat reservations grid
function cebesEnNewsIndex(title, date, url, catId, hits)
{
var self = this;
self.title = title;
self.date = date;
self.url = url;
self.catId = catId;
self.hits = hits;
}
// Overall viewmodel for this screen, along with initial state
function cebesEnNewsIndexViewModel()
{
var self = this;
// Non-editable catalog data - would come from the server
// Editable data
self.news = ko.observableArray([
new cebesEnNewsIndex("Welcome to Cebes Enterprise", "18 Mey 2012", "#", '4', '20'),
new cebesEnNewsIndex("Groove for Dummies", "20 Mey 2012", "#", "4", "21"),
new cebesEnNewsIndex("New Features of Cebes Framework", "18 Mey 2012", "#", "3", "19"),
new cebesEnNewsIndex("Welcome to Cebes Enterprise", "20 Mey 2012", "#", "3", "24"),
new cebesEnNewsIndex("Welcome to Cebes Enterprise sdfadfa", "18 Mey 2012", "#", '4', '20'),
new cebesEnNewsIndex("Groove for Dummiessdfadf", "20 Mey 2012", "#", "4", "21"),
new cebesEnNewsIndex("New Features of Cebes Frameworksdfad", "18 Mey 2012", "#", "3", "19"),
new cebesEnNewsIndex("Welcome to Cebes Enterprisdfadfe", "20 Mey 2012", "#", "3", "24"),
new cebesEnNewsIndex("Welcome to Cebes Enterprissdfadfe", "18 Mey 2012", "#", '4', '20'),
new cebesEnNewsIndex("Groove for Dummiesdfads", "20 Mey 2012", "#", "4", "21"),
new cebesEnNewsIndex("New Features of Cebes Framework", "18 Mey 2012", "#", "3", "19"),
new cebesEnNewsIndex("Welcome to Cebesasdfa Enterprise", "20 Mey 2012", "#", "3", "24"),
new cebesEnNewsIndex("Welcome to Cebessdfad Enterprise", "18 Mey 2012", "#", '4', '20'),
new cebesEnNewsIndex("Groove fsdfaor Dummies", "20 Mey 2012", "#", "4", "21"),
new cebesEnNewsIndex("New Featuresadfas of Cebes Framework", "18 Mey 2012", "#", "3", "19"),
new cebesEnNewsIndex("Welcome tosdfad Cebes Enterprise", "20 Mey 2012", "#", "3", "24"),
new cebesEnNewsIndex("New Emsfadfployee", "22 Mey 2012", "#", "5", "25")
]);
}
ko.applyBindings(new cebesEnNewsIndexViewModel());
})();
正如您在提琴手上看到的那样,过滤作品并显示 8 个新闻项目
我想限制数字并根据具有相同数据的日期项目对数字进行排序(仅显示 3 个过滤和排序的新闻项目):
这是我的脚本的 jsfiddle 链接:http: //jsfiddle.net/StRa6/ 保持简单,请编辑并保存我的 jsfiddle。欢迎任何建议。
谢谢。