Cursus Raku / Elementa / Fundamenta ordinis exsecutionis / Conditiones comprobationes / Comparando catenae
Quiz 2 — condicio in if
Correct the program and answer the question.
| . | my $password = prompt 'Enter your password: '; |
| . | |
| eq = | if $password ␣␣ '*&(#&$#Y' { |
| . | say 'Correct'; |
| . | } |
| . | else { |
| . | say 'Incorrect'; |
| . | } |
With the = in the test, what does this program do?
| Always prints ‘Correct’ | Your answer: (: Always prints ‘Correct’, Always prints ’Incorrect’, Prints ’Correct’ for correct passwords and ‘Incorrect’ for incorrect ones, Prints ’Incorrect’ for correct passwords and ’Correct’ for incorrect ones :) |
The program always prints ’Correct’ because
If you type
$password =
’*&(#&$#Y’ is an assignment that sets the new value of
the $password variable. As the value is neither zero nor an
empty string, it is considered True. The password that the
user enters is never checked in this case.If you type
==, then the program will break as it tries to convert the
strings (the user password and the correct password) to numbers and
fails.