No-Arrow Edges

Lines without arrowheads: solid `---`, dotted `-.-`, thick `===`.

no-arrow-edges.mmd
graph TD
  A[Node 1] ---|related| B[Node 2]
  B -.- C[Node 3]
  C === D[Node 4]
Output
Flowchart, Zombie Mermaid related Node 1 Node 2 Node 3 Node 4

More Flowchart examples