How to loop all children in hierarchicaldata?

Question

I have arraycollection, in which root task contains children, children contains sub-children and so on.

For eg:

[0] root1

   child1
       child2
           child3
                data

[1] root1

   child1
       child2
           child3
                child4
                   data

How can I loop this using any loops

Thank u all

Answer 1

Use recursion

loopChildren(root1)

function loopChildren(parent:Array):void {

    for(var i:String in parent){
        if(parent[i] is Array) loopChildren(parent[i]);
        else {
            //read data
        }
    }
}