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返回值:jQuery
slice(start, [end])
概述
选取一个匹配的子集
与原来的slice方法类似
参数
startIntegerV1.1.4
开始选取子集的位置。第一个元素是0.如果是负数，则可以从集合的尾部开始选起。
end IntegerV1.1.4
结束选取自己的位置，如果不指定，则就是本身的结尾。
示例
描述:
选择第一个p元素
HTML 代码:
<p>Hello</p><p>cruel</p><p>World</p>
jQuery 代码:
$("p").slice(0, 1).wrapInner("<b></b>");结果:
[ <p><b>Hello</b></p> ]
描述:
选择前两个p元素
HTML 代码:
<p>Hello</p><p>cruel</p><p>World</p>
jQuery 代码:
$("p").slice(0, 2).wrapInner("<b></b>");结果:
[ <p><b>Hello</b></p>,<p><b>cruel</b></p> ]
描述:
只选取第二个p元素
HTML 代码:
<p>Hello</p><p>cruel</p><p>World</p>
jQuery 代码:
$("p").slice(1, 2).wrapInner("<b></b>");结果:
[ <p><b>cruel</b></p> ]
描述:
只选取第二第三个p元素
HTML 代码:
<p>Hello</p><p>cruel</p><p>World</p>
jQuery 代码:
$("p").slice(1).wrapInner("<b></b>");结果:
[ <p><b>cruel</b></p>, <p><b>World</b></p> ]
描述:
选取第最后一个p元素
HTML 代码:
<p>Hello</p><p>cruel</p><p>World</p>
jQuery 代码:
$("p").slice(-1).wrapInner("<b></b>");结果:
[ <p><b>World</b></p> ]