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Graph.hasEdge() method

Check if an edge exists in the graph.

检查边是否存在于图中。

Signature:

hasEdge(fromVertex: T | Vertice<T>, toVertex: T | Vertice<T>): boolean;

Parameters

Parameter	Type	Description
fromVertex	T | Vertice<T>	The first vertex of the edge. (If the graph is directed, the order of vertices matters.)
toVertex	T | Vertice<T>	The second vertex of the edge.

Returns:

boolean

Whether the edge exists.