### 返回值:jQueryprepend(content)
### 概述
向每個匹配的元素內部前置內容。
這是向所有匹配元素內部的開始處插入內容的最佳方式。
### 參數
#### **content**String, Element, jQuery*V1.0*
要插入到目標元素內部前端的內容
#### **function(index, html)**Function*V1.4*
返回一個HTML字符串，用于追加到每一個匹配元素的里邊。接受兩個參數，index參數為對象在這個集合中的索引值，html參數為這個對象原先的html值。
### 示例
#### 描述:
向所有段落中前置一些HTML標記代碼。
##### HTML 代碼:
~~~
<p>I would like to say: </p>
~~~
##### jQuery 代碼:
~~~
$("p").prepend("<b>Hello</b>");
~~~
##### 結果:
~~~
[ <p><b>Hello</b>I would like to say: </p> ]
~~~
#### 描述:
將一個DOM元素前置入所有段落
##### HTML 代碼:
~~~
<p>I would like to say: </p>
<p>I would like to say: </p>
<b class="foo">Hello</b>
<b class="foo">Good Bye</b>
~~~
##### jQuery 代碼:
~~~
$("p").prepend( $(".foo")[0] );
~~~
##### 結果:
~~~
<p><b class="foo">Hello</b>I would like to say: </p>
<p><b class="foo">Hello</b>I would like to say: </p>
<b class="foo">Good Bye</b>
~~~
#### 描述:
向所有段落中前置一個jQuery對象(類似于一個DOM元素數組)。
##### HTML 代碼:
~~~
<p>I would like to say: </p><b>Hello</b>
~~~
##### jQuery 代碼:
~~~
$("p").prepend( $("b") );
~~~
##### 結果:
~~~
<p><b>Hello</b>I would like to say: </p>
~~~
- 速查表
- 核心
- jQuery(selector,[context])
- jQuery(html,[ownerDocument])
- jQuery(callback)
- jQuery.holdReady(hold)
- each(callback)
- size()
- length
- selector
- context
- get([index])
- index([selector|element])
- data([key],[value])
- removeData([name|list])
- jQuery.data(element,[key],[value])
- queue(element,[queueName])
- dequeue([queueName])
- clearQueue([queueName])
- jQuery.noConflict([extreme])
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- :parent
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- [selector1][selector2][selectorN]
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- add(expr|ele|html|obj[,con])
- andSelf()
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- 文檔處理
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- prepend(content|fn)
- prependTo(content)
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- clone([Even[,deepEven]])
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- hover([over,]out)
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- blur([[data],fn])
- change([[data],fn])
- click([[data],fn])
- dblclick([[data],fn])
- error([[data],fn])
- focus([[data],fn])
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- 效果
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- serialize()
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- 工具
- jQuery.support
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- jQuery.each(object,[callback])
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- jQuery.param(obj,[traditional])
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- Deferred
- def.done(donCal,[donCal])
- def.fail(failCal)
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- def.reject(args)
- def.rejectWith(context,[args])
- def.resolve(args)
- def.resolveWith(context,args)
- def.then(doneCal,failCal)
- def.progress([type],[target])
- def.pipe([donFil],[faiFil],[proFil])
- def.always(alwCal,[alwCal])
- def.notify(args)
- def.notifyWith(context,[args])
- def.state()
- Callbacks
- callbacks.add(callbacks)
- callbacks.disable()
- callbacks.empty()
- callbacks.fire(arguments)
- callbacks.fired()
- callbacks.fireWith([context][,args])
- callbacks.has(callback)
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- callbacks.remove(callbacks)
- jQuery.callbacks(flags)
- 關于
- 關于jQuery API 文檔
- 提交bug及獲取更新
- 其它
- HTML5速查表
- 正則表達式速查表