RosettaCodeData/Task/Singly-linked-list-Element-insertion/Zkl/singly-linked-list-element-insertion-1.zkl

L("a","b","c").insert(1,"foo") //-->L("a","foo","b","c")
a:=L("a","b","c"); a.insert(a.find("b"),"foo") //-->L("a","foo","b","c")