There is "isdefined" , which may be what you need. http://julia.readthedocs.org/en/latest/stdlib/base/?highlight=isdefined#Base.isdefined
eg: isdefined(Main, :x) On Wednesday, 16 April 2014 06:40:27 UTC+1, Peter wrote: > > Is there an equivalent for the Matlab function exist() which checks for > the existence of variables, functions, etc? >