I'm following a lua doc page on string splitting, get an error trying it myself. For example,
Lua 5.1.4 Copyright (C) 1994-2008 Lua.org, PUC-Rio
split("a,b,c", ",")
returns
stdin:1: attempt to call global 'split' (a nil value)
stack traceback:
stdin:1: in main chunk
[C]: ?
Why is this so?