DirectedEdge

DirectedEdge[u, v] or u -> v represents a directed edge from u to v.

Examples

Create directed edges:

DirectedEdge[1, 2]
(* 1 \[DirectedEdge] 2 *)

Build a directed graph:

Graph[{DirectedEdge[1, 2], DirectedEdge[2, 3]}]
(* same as Graph[{1 -> 2, 2 -> 3}] *)

With tags:

DirectedEdge["A", "B", "route1"]

Please visit the official Wolfram Language Reference for more details.