an accessor specifying how to get the children from a node
The interface for getting child data from node data. This function must return data for every child given the data for the current node. i will increment for each node processed.
i
Can be modified with Hierarchy#children.
get children from a node
the datum to get children of
the index with which the data was encountered
children - all the children data of this node, or undefined if there are no children
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an accessor specifying how to get the children from a node
The interface for getting child data from node data. This function must return data for every child given the data for the current node.
iwill increment for each node processed.Can be modified with Hierarchy#children.