<div id="method-Ext.util.MixedCollection-reorder"></div>/**
* Reorders each of the items based on a mapping from old index to new index. Internally this
* just translates into a sort. The 'sort' event is fired whenever reordering has occured.
<div id="method-Ext.util.MixedCollection-reorder"></div>/**
* Reorders each of the items based on a mapping from old index to new index. Internally this
* just translates into a sort. The 'sort' event is fired whenever reordering has occured.