Wolfram: Show Function Help

Show Function Documentation in Notebook

Type ?FunctionName in Notebook .

(* return help string of StringLength *)

(* shortcut syntax  *)
?StringLength

(* FullForm syntax *)
Information[ StringLength, "Usage" ]

• Information

Show Function Documentation in WolframScript

If you are runnig WolframScript in terminal, use:

?StringLength

(* or *)

Information[StringLength]

(* or *)

?StringLength // ToString