prepend
English [pri:'pend] US [pri:'pend]
vt. ?? ????, ?? ????, premeditate
jquery prepend() ??? ???
??: prepend() ???? ??? ??? ?? ??(?? ??)? ??? ??? ?????. prepend() ? prependTo() ???? ??? ??? ????. ???? ??? ????. ??? ???? ??? prependTo() ??? ???? ??? ??? ? ??? ?????.
??: ??$(selector).prepend(content)
????:
| Parameters | Description |
| content | ?????. ??? ???? ?????(HTML ?? ?? ??). |
??? ???? ??? ??: ??? ???? ??? ??? ?? ??? ??? ???? ?????.
??: ??$(selector).prepend(function(index,html))
????:
| ???? | Description |
| function(index,html) | ?????. ??? ??? ???? ??? ?????. |
| index | ????. ???? ??? ??? ?????. |
| html | ????. ???? ?? HTML? ?????. |
jquery prepend() ??? ?
<html>
<head>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$("p").prepend("<b>Hello world!</b> ");
});
});
</script>
</head>
<body>
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
<button>在每個(gè) p 元素的開頭插入內(nèi)容</button>
</body>
</html>??? ????? ??? "???? ??" ??? ?????