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The slice( start, end ) method selects a subset of the matched elements.
Here is the simple syntax to use this method −
selector.slice( start, end )
Here is the description of all the parameters used by this method −
start − Where to start the subset. The first element is at zero. Can be negative to start from the end of the selection.
end − Where to end the subset excluding end element. If unspecified, ends at the end of the selection.
Following is a simple example a simple showing the usage of this method −
<html>
<head>
<title>The jQuery Example</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$("li").slice(2, 5).addClass("selected");
});
</script>
<style>
.selected { color:red; }
</style>
</head>
<body>
<div>
<ul>
<li class="above">list item 0</li>
<li class="top">list item 1</li>
<li class="top">list item 2</li>
<li class="middle">list item 3</li>
<li class="middle">list item 4</li>
<li class="bottom">list item 5</li>
<li class="bottom">list item 6</li>
<li class="below">list item 7</li>
</ul>
</div>
</body>
</html>
This will produce following result −
<html>
<head>
<title>The jQuery Example</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
<script type="text/javascript" language="javascript">
$(document).ready(function() {
$("li").slice(2, 5).addClass("selected");
});
</script>
<style>
.selected { color:red; }
</style>
</head>
<body>
<div>
<ul>
<li class="above">list item 0</li>
<li class="top">list item 1</li>
<li class="selected">list item 2</li>
<li class="selected">list item 3</li>
<li class="selected">list item 4</li>
<li class="bottom">list item 5</li>
<li class="bottom">list item 6</li>
<li class="below">list item 7</li>
</ul>
</div>
</body>
</html>
This will produce following result −
jQuery - slice( start, [end] ) Method
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原文地址：http://www.cnblogs.com/hephec/p/4574423.html
