edgeExists method

  1. @override
bool edgeExists(
  1. T vertexOut,
  2. T vertexIn
)

Returns true if there is an edge pointing from vertexOut to vertexIn. Returns False otherwise.

Implementation

@override
bool edgeExists(T vertexOut, T vertexIn) {
  if (_edges.containsKey(vertexOut) &&
      _edges[vertexOut]!.containsKey(vertexIn)) {
    return true;
  }
  return false;
}