Function findEdge

packages/effect/src/Graph.ts:654–664

(
  graph: Graph<N, E, T> | MutableGraph<N, E, T>,
  predicate: (data: E, source: NodeIndex, target: NodeIndex) => boolean
)

 * @category getters
 */
export const findEdge = <N, E, T extends Kind = "directed">(
  graph: Graph<N, E, T> | MutableGraph<N, E, T>,
  predicate: (data: E, source: NodeIndex, target: NodeIndex) => boolean
): Option.Option<EdgeIndex> => {
  for (const [edgeIndex, edgeData] of graph.edges) {
    if (predicate(edgeData.data, edgeData.source, edgeData.target)) {
      return Option.some(edgeIndex)
    }
  }
  return Option.none()
}

/**
 * Finds all edges that match the given predicate.