syntax - How can I refer to a specific member of a Tuple of any size in F#

Question

okay, this might be a silly question.

So I have some tuples of size 4 so like (int,int,int,int)

If it were a 2 tuple I could use fst(myTuple) to refer to the first element. How could I, say, refer to the third element of a 4 tuple?

Answer 1

Use pattern matching:

let tup = 1, 2, 3, 4
let _,_,third,_ = tup
printfn "%d" third // displays "3"

This is described directly in the MSDN documentation for tuples: Tuples (F#)