Title here
Summary here
Multiple Return Values in Julia
Julia has built-in support for multiple return values. This feature is used often in idiomatic Julia, for example to return both result and error values from a function.
# The (Int, Int) in this function signature shows that
# the function returns 2 Ints.
function vals()
return 3, 7
end
# Main function
function main()
# Here we use the 2 different return values from the
# call with multiple assignment.
a, b = vals()
println(a)
println(b)
# If you only want a subset of the returned values,
# use the underscore _ as a placeholder.
_, c = vals()
println(c)
end
# Call the main function
main()To run the program, save it as multiple_return_values.jl and use the Julia REPL or command line:
$ julia multiple_return_values.jl
3
7
7Accepting a variable number of arguments is another nice feature of Julia functions; we’ll look at this next.