当HTML标记代码中的元素包含文本时无法使用这个函数。因此,如果要添加文本应该在包裹完成之后再行添加。
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Wrap all matched elements with a structure of other elements.
This wrapping process is most useful for injecting additional structure into a document, without ruining the original semantic qualities of a document.
This works by going through the first element provided (which is generated, on the fly, from the provided HTML) and finds the deepest ancestor element within its structure -- it is that element that will enwrap everything else.
This does not work with elements that contain text. Any necessary text must be added after the wrapping is done.
返回值
jQuery
参数
html (String) : HTML标记代码字符串,用于动态生成元素并包裹目标元素
示例
把所有的段落用一个新创建的div包裹起来
HTML 代码:
Test Paragraph.
$("p").wrap("");
结果:
Test Paragraph.
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Wrap all matched elements with a structure of other elements.
返回值
jQuery
参数
elem (Element) : 用于包装目标元素的DOM元素
示例
用ID是"content"的div将每一个段落包裹起来
HTML 代码:
Test Paragraph.
$("p").wrap(document.getElementById('content'));
结果:
Test Paragraph.
这个函数的原理是检查提供的第一个元素并在它的代码结构中找到最上层的祖先元素--这个祖先元素就是包装元素。
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Wrap all the elements in the matched set into a single wrapper element.
This is different from '.wrap()' where each element in the matched set would get wrapped with an element.
This wrapping process is most useful for injecting additional structure into a document, without ruining the original semantic qualities of a document.
This works by going through the first element provided (which is generated, on the fly, from the provided HTML) and finds the deepest ancestor element within its structure -- it is that element that will enwrap everything else.
返回值
jQuery
参数
html (String) : TML标记代码字符串,用于动态生成元素并包装目标元素
示例
用一个生成的div将所有段落包裹起来
HTML 代码:
Hello
cruel
World
$("p").wrapAll("");
结果:
Hello
cruel
World
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Wrap all the elements in the matched set into a single wrapper element.
This is different from '.wrap()' where each element in the matched set would get wrapped with an element.
返回值
jQuery
参数
elem (Element) : 用于包装目标元素的DOM元素
示例
用一个生成的div将所有段落包裹起来
HTML 代码:
Hello
cruel
World
$("p").wrapAll(document.createElement("div"));
结果:
Hello
cruel
World
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Wrap the inner child contents of each matched element (including text nodes) with an HTML structure.
This wrapping process is most useful for injecting additional structure into a document, without ruining the original semantic qualities of a document. This works by going through the first element provided (which is generated, on the fly, from the provided HTML) and finds the deepest ancestor element within its structure -- it is that element that will enwrap everything else.
返回值
jQuery
参数
html (String) : HTML标记代码字符串,用于动态生成元素并包装目标元素
示例
把所有段落内的每个子内容加粗
HTML 代码:
Hello
cruel
World
$("p").wrapInner("");
结果:
Hello
cruel
World
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Wrap the inner child contents of each matched element (including text nodes) with a DOM element.
返回值
jQuery
参数
elem (Element) : 用于包装目标元素的DOM元素
示例
把所有段落内的每个子内容加粗
HTML 代码:
Hello
cruel
World
$("p").wrapInner(document.createElement("b"));
结果:
Hello
cruel
World
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Replaces all matched elements with the specified HTML or DOM elements.
返回值
jQuery
参数
content (String, Element, jQuery) : 用于将匹配元素替换掉的内容
示例
把所有的段落标记替换成加粗的标记。
HTML 代码:
Hello
cruel
World
$("p").replaceWith("Paragraph. ");
结果:
Paragraph. Paragraph. Paragraph.
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replaceAll(selector)
用匹配的元素替换掉所有 selector匹配到的元素。
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Replaces the elements matched by the specified selector with the matched elements.
返回值
jQuery
参数
selector (选择器) : 用于查找所要被替换的元素
示例
把所有的段落标记替换成加粗标记
HTML 代码:
Hello
cruel
World
$("Paragraph. ").replaceAll("p");
结果:
Paragraph. Paragraph. Paragraph.
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empty()
删除匹配的元素集合中所有的子节点。
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Remove all child nodes from the set of matched elements.
返回值
jQuery
示例
把所有段落的子元素(包括文本节点)删除
HTML 代码:
Hello, Person and person
$("p").empty();
结果:
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remove([expr])
从DOM中删除所有匹配的元素。
这个方法不会把匹配的元素从jQuery对象中删除,因而可以在将来再使用这些匹配的元素。
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Removes all matched elements from the DOM.
This does NOT remove them from the jQuery object, allowing you to use the matched elements further. Can be filtered with an optional expression.
返回值
jQuery
参数
expr (String) : (可选) 用于筛选元素的jQuery表达式
示例
从DOM中把所有段落删除
HTML 代码:
Hello
how areyou?
$("p").remove();
结果:
how are
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从DOM中把带有hello类的段落删除
HTML 代码:
Hello
how areyou?
$("p").remove(".hello");
结果:
how are
you?
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Clone matched DOM Elements and select the clones.
This is useful for moving copies of the elements to another location in the DOM.
返回值
jQuery
示例
克隆所有b元素(并选中这些克隆的副本),然后将它们前置到所有段落中。
HTML 代码:
Hello
, how are you?
$("b").clone().prependTo("p");
结果:
Hello
Hello, how are you?
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Clone matched DOM Elements, and all their event handlers, and select the clones.
This is useful for moving copies of the elements, and their events, to another location in the DOM.
返回值
jQuery
参数
true (Boolean) : 设置为true以便复制元素的所有事件处理
示例
创建一个按钮,他可以复制自己,并且他的副本也有同样功能。
HTML 代码:
jQuery 代码:
$("button").click(function(){
$(this).clone(true).insertAfter(this);
});
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