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Jquery $("input:checkbox[name='xxx']:checked)的含义

2016-08-23 09:49 441 查看

Jquery $(“input:checkbox[name=’xxx’]:checked)的含义

:checkbox
是一个jquery extension selector，不属于css的方法，无法利用dom本身的作用.

有以下几种:


selector	function
:animated Selector	Select all elements that are in the progress of an animation at the time the selector is run.
:Attribute Not Equal Selector [name!=”value”]	Select elements that either don’t have the specified attribute, or do have the specified attribute but not with a certain value.
:button Selector	Selects all button elements and elements of type button.
:checkbox Selector	Selects all elements of type checkbox.
:eq() Selector	Select the element at index n within the matched set.
:even Selector	Selects even elements, zero-indexed. See also odd.
:file Selector	Selects all elements of type file.
:first Selector	Selects the first matched DOM element.
:gt() Selector	Select all elements at an index greater than index within the matched set.
:has() Selector	Selects elements which contain at least one element that matches the specified selector.
:header Selector	Selects all elements that are headers, like h1, h2, h3 and so on.
::hidden Selector	Selects all elements that are hidden.
:image Selector	Selects all elements of type image.
:input Selector	Selects all input, textarea, select and button elements.
:last Selector	Selects the last matched element.
:lt() Selector	Select all elements at an index less than index within the matched set.
:parent Selector	Select all elements that have at least one child node (either an element or text).
:password Selector	Selects all elements of type password.
:radio Selector	Selects all elements of type radio.
:reset Selector	Selects all elements of type reset.
:selected Selector	Selects all elements that are selected.
:submit Selector	Selects all elements of type submit.
:text Selector	Selects all input elements of type text.
:visible Selector	Selects all elements that are visible.
:odd Selector	Selects odd elements, zero-indexed.

:checked
是一个jquery form selector。

拥有以下几个选择器:


Selector	function
:button Selector	Selects all button elements and elements of type button.
:checkbox Selector	Selects all elements of type checkbox.
:checked Selector	Matches all elements that are checked or selected.
:disabled Selector	Selects all elements that are disabled.
:enabled Selector	Selects all elements that are enabled.
:file Selector	Selects all elements of type file.
:focus Selector	Selects element if it is currently focused.
:image Selector	Selects all elements of type image.
:input Selector	Selects all input, textarea, select and button elements.
:password Selector	Selects all elements of type password.
:radio Selector	Selects all elements of type radio.
:reset Selector	Selects all elements of type reset.
:selected Selector	Selects all elements that are selected.
:submit Selector	Selects all elements of type submit.
:text Selector	Selects all input elements of type text.

Note:

:fist, :last, :checked还是比较有用的，但是这个分类也不是很准，选择器有的属于两个类别或多个类别，有一点乱

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