How can I test if a string contains only whitespace?
Example strings:
-
" "
(space, space, space) -
" \t \n "
(space, tab, space, newline, space) -
"\n\n\n\t\n"
(newline, newline, newline, tab, newline)
How can I test if a string contains only whitespace?
Example strings:
" "
(space, space, space)
" \t \n "
(space, tab, space, newline, space)
"\n\n\n\t\n"
(newline, newline, newline, tab, newline)