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JAVASCRIPT網頁應用程式設計
book

JAVASCRIPT網頁應用程式設計

by Alex MacCaw
January 2013
Intermediate to advanced
332 pages
5h 23m
Chinese
GoTop Information, Inc.
Content preview from JAVASCRIPT網頁應用程式設計
242
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第十三章
接著就可以利用這行程式碼來產生模版內容:
$("#foo").html('recipesEJS', recipeData)
前面這段產生模版內容的程式碼,是利用 script 標籤的
id
屬性值(recipesEJS)來指定
欲處理的模版。
$.View 和子模版
如果只是要產生字串,可以直接使用
$.View(TEMPLATE,data)
,並傳入兩組參數:模版
的路徑,以及要用來置換模版內容的資料:
var html = $.View("template/items.ejs", items );
子模版(subtemplate)是一種相當常見的用法。假設我們有一份用來產生資料清單的模
版(
items.ejs
),通常會需要針對清單裡的每一筆資料,建立獨立的模版。這時我們會先
template/items.ejs
模版幫每筆資料產生
<li>
標籤,再用
template/item.ejs
模版
來產生每筆資料項目的真正內容:
<% for( var i = 0; i < this.length; i++){ %>
<li>
<%= $.View("template/item.ejs", this[i]);
</li>
< % } %>
this
指的是傳入模版的資料。對
template/items.ejs
而言,
this
指的是存放所有資料
的陣列。對
template/item.ejs
而言,
this
指的是某筆資料。
延遲物件(Deferreds
我們經常會需要在發送一組 Ajax 請求之後,再依據伺服器回傳的資料產生模版的內容。 ...
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Publisher Resources

ISBN: 9789862766811