Empty string: Difference between revisions
add BQN
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Line 444:
IF var$ <> "" THEN PRINT "String is not empty"
</lang>
=={{header|BQN}}==
An empty string in BQN is the same as an empty array, as all strings are character arrays.
To check emptiness, we can check the length of the array using <code>≠</code>(or rank <code>≢</code>).
<lang bqn>•Show ""
•Show 0 = ≠ ""
•Show 0 ≠ ≠ ""
•Show "" ≡ ⟨⟩</lang><lang bqn>
⟨⟩
1
0
1</lang>
=={{header|Bracmat}}==
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