Append, InsertBefore, after and InsertAfter

Method
Source Wrapper Set/String
Target Packaging Group
Attribute description

A.append (b)

B

A
If the destination wrapper set matches only one element, then the source (which also includes all elements that match the homologous wrapper set) is moved to the target location; If the destination wrapper set contains more than one element, the source remains in its original location, but copies an identical copy to the target location.

Thus, if the target matches only one element, the source will be deleted when the preceding method is used.

B.appendto (a)

A.prepend (b)

B.prependto (a)

A.before (b)

B.insertbefore (a)

A.after (b)

B.insertafter (a)

Detailed Source reference: http://www.111cn.net/article/25752.htm