Class: IdExtractor

IdExtractor()

Extractor for retrieving and caching the unique ID of a node.

Constructor

new IdExtractor()

Create a new Extractor instance
Implements:
Source:

Classes

IdExtractor

Members

(protected) _memo :Map.<Node, Number>

Type:
  • Map.<Node, Number>
Source:

Methods

(protected) _extract(node)

Extract the ID for a node and cache it.
Parameters:
Name Type Description
node Node
Source:

get(node) → {Number}

Get the cached ID (index within pre-order traversal) for a node. If it is not cached, compute it first.
Parameters:
Name Type Description
node Node
Source:
Returns:
Type
Number