Empty string: Difference between revisions

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# check that string is not empty
# check that string is not empty
s <> ""</lang>
s <> ""</lang>

=={{header|Smalltalk}}==
<lang smalltalk>
"Assign empty string to a variable"
str := ''.

"Check that string is empty"
str isEmpty.

"Check that string is not empty"
str isEmpty not.
</lang>


=={{header|Standard ML}}==
=={{header|Standard ML}}==