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This article introduces the relevant knowledge of "what are the methods of reading nodes in jquery". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

The methods to read nodes are: 1, "jQuery.parent (expr)", 2, "jQuery.children (expr)", 3, "jQuery.contents ()", 4, "jQuery.prev ()", 5, "jQuery.next ()", and so on.

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

The method of getting nodes by jquery

JQuery.parent (expr)

To find the parent node, you can pass expr for filtering, such as $("span") .parent () or $("span") .parent (".class")

JQuery.parents (expr)

Similar to jQuery.parents (expr), but finding all ancestral elements, not limited to parent elements

JQuery.children (expr)

Returns all child nodes. This method returns only direct child nodes, not all descendant nodes.

JQuery.contents ()

Returns everything below, including nodes and text. The difference between this method and children () is that, including blank text, will also be used as a

JQuery.prev ()

Return to the previous sibling node, not all sibling nodes

JQuery.prevAll ()

Return all previous sibling nodes

JQuery.next ()

Return to the next sibling node, not all sibling nodes

JQuery.nextAll ()

Return all subsequent sibling nodes

JQuery.siblings ()

Return to sibling nodes, regardless of front and back

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