Julia - Trim string whitespace and check length
lstrip
for leading whitespace, rstrip
for trailing whitespace, strip
for both.
There is an isempty
function for julia as well:
isempty("")
>> true
Perhaps you should check out the Julia docs for other string-related functions (https://docs.julialang.org/en/stable/ & https://docs.julialang.org/en/stable/manual/strings/)
For the start/end of a string you have
lstrip(string)
rstrip(string)
if you need to take everything out I recommend you use something like
a = "a b c d e f"
join(map(x -> isspace(a[x]) ? "" : a[x], 1:length(a)))
because sometimes you can get strings that include some weird whitespaces that wont match " "
or ' '
as is shown here
Edit
filter(x -> !isspace(x), a)
as suggested by Fengyang Wang, is even better