Transform the zTree nodes data into simple array. (To avoid the user to write code to traverse all nodes)
Please use zTree object to executing the method.
JSON data object of the node which need to be transformed.
or JSON data objects collection of the nodes which need to be transformed.
The JSON data objects array of the nodes which be transformed.
var treeObj = $.fn.zTree.getZTreeObj("tree");
var nodes = treeObj.transformToArray(treeObj.getNodes());