3 ms·
They learned that $null = test is bad, that $a = $b is bad, but didn't learn that you do either x$null = xtest or "$a" = "$b", not both.
by tobylane 8y ago
They learned that $null = test is bad, that $a = $b is bad, but didn't learn that you do either x$null = xtest or "$a" = "$b", not both.