January 2013
Intermediate to advanced
332 pages
5h 23m
Chinese
Content preview from JAVASCRIPT網頁應用程式設計
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
234
|
第十三章
this.delegate('.prev','click', function(){
paginate.attr('offset', paginate.offset-paginate.limit );
});
預設值
如果想為
Paginate
實體的屬性設定預設值，可以設定一組靜態屬性
defaults
。當我們
建立
paginate
實體時，如果沒有特別設定某些屬性的值，就會用預設值來初始化：
$.Model('Paginate',{
defaults : {
count: Infinity,
offset: 0,
limit: 100
}
},{
setCount : function(newCount, success, error){ ... },
setOffset : function(newOffset, success, error){ ... }
});
var paginate = new Paginate({count: 500});
assertEqual(paginate.limit, 100);
assertEqual(paginate.count, 500);
接下來，如果再加上一些輔助函式，就能比較容易移到上一頁或下一頁，以及判斷究竟
是否有上一頁和下一頁。
輔助函式
輔助函式，是用來輔助設定 / 取得模型實體相關資訊的原型函式。接下來這段程式（這
是
Paginate
模型的完整版程式碼）裡的
next
和
prev
函式，能夠移到下一頁或前一頁
（如果有的話）；而
canNext ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.