julia> function my_fu() global j println(j) end my_fu (generic function with 1 method) julia> for j=1:3 global j my_fu() end ERROR: syntax: variable "j" declared both local and global
You are implicitly declaring
j locally in your
for i ∈ 1:3 global j = i my_fu() end
Works, why ?
It’s just an alternate syntax that’s available in Julia. It is exactly equivalent to
in. Note that if you are using a Julia (or other latex-to-unicode) plugin on your editor you can just type in
\in, either hit tab or space, and the replacement will be made for you.
Of course, this has nothing to do with why your original code was failing.