jQuery学习笔记(3)
4月 3, 2008 – 10:57 下午本记： 13—-20点
13 removeAttr(name) 删除属性
eg: <input disabled=”disabled”/>
$(”input”).removeAttr(”disabled”)=><input/>
14 removeClass(class) 删除样式，当class是空时删除所有的样式，如果class为指定样式则删 指定样式
eg: <p class=”highlight selected first”>Hello</p>
$(”p”).removeClass(”selected highlight”)=>[ <p class=”first”>Hello</p> ]
$(”p”).removeClass() =>[ <p>Hello</p> ]
15. text() 取得element中的内容text(val) 设置element内容text与html差不多，只是text会把<,>用html标识符替换
eg: <p><b>Test</b> Paragraph.</p><p>Paraparagraph</p>
$(”p”).text() =>Test Paragraph.Paraparagraph;
<p>Test Paragraph.</p>
$(”p”).text(”<b>Some</b> new text.”);==>
<p><b>Some</b> new text.</p>
$(”p”).text(”<b>Some</b> new text.”, true) ==>
<p>Some new text.</p>
16.toggleClass(class) 这是一个比较有用的方法，就是当element存在参数中的样式的时候
取消，如果不存在就设置此样式
eg:<p>Hello</p><p class="selected">Hello Again</p>$("p").toggleClass("selected")==>[ <p class="selected">Hello</p>, <p>Hello Again</p> ]
17 val() 取得第一个element的vlaue值 val(val) 设置属性的值
eg: <input type="text" value="some text"/>$("input").val() == >"some text";$("input").val("test")==><input type="text" value="test"/>;
18 after(content)给相关的element从后面插入节点
eg: <p>I would like to say: </p>$("p").after("<b>Hello</b>")==><p>I would like to say: </p><b>Hello</b><b>Hello</b><p>I would like to say: </p>$("p").after( $("b") )==><p>I would like to say: </p><b>Hello</b>;
21 before(content)与after相反是插入到前面
eg: <p>I would like to say: </p>$("p").after("<b>Hello</b>")==>><b>Hello</b><p>I would like to say: </p
19 append(content) 与上面不同的是append是添加把content做为子element
eg: <p>I would like to say: </p>$("p").append("<b>Hello</b>")＝＞<p>I would like to say: <b>Hello</b></p>;eg: <p>I would like to say: </p><b>Hello</b>$("p").append( $("b") )==>;<p>I would like to say: <b>Hello</b></p>
20 appendto(content)与append刚好相反
<p>I would like to say: </p><div id="foo"></div>$("p").appendTo("#foo")==><div id="foo"><p>I would like to say: </p></div>;
