Insert a node before the current jquery Node

There are many ways for jquery to insert a dom node. Here we mainly describe how to insert a node before the current node is implemented in jquery.

In jquery, the method for inserting nodes before matching nodes is before () insertBefore.

The before () method inserts the specified content before the selected element.

Syntax $ (selector). before (content)

Example:

$ ('. Insert '). click (function () {var str = '<div> insert content </div>'; $ ('# phpernote '). before (str );});

Example of inserting a node before the current node:

$ ('Click '). click (function () {var str = '<div> insert content </div>'; $ (this ). before (str );});

The insertBefore () method inserts HTML tags or existing elements before the selected elements. Note: If this method is used for existing elements, these elements are removed from the current position and added before the selected element.

Syntax $ (content). insertBefore (selector)

Example of inserting a node before the current node:

$ ('Click '). click (function () {var str = '<div> insert content </div>'; $ (str ). insertBefore (this );});

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