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Home/ Questions/Q 8947179
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Editorial Team
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Editorial Team
Asked: June 15, 20262026-06-15T12:41:35+00:00 2026-06-15T12:41:35+00:00

New to ruby, exploring the teranary operator. This works just as expected: 5==5? x

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New to ruby, exploring the teranary operator.

This works just as expected:

5==5? "x" : "y"

returns “x”, as everything in ruby is an expression.

But, this doesn’t…

user.birthday? "x" : "y"

It’s suppose to check if birthday is nil, and return the appropriate string. But it gives me a syntax error:

syntax error, unexpected ':', expecting $end
user.birthday? "x" : "y"
                    ^

What’s so different about this statement comapred to the other?

Thanks

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  1. Editorial Team
    Editorial Team
    2026-06-15T12:41:36+00:00Added an answer on June 15, 2026 at 12:41 pm

    Methods can and often do end with a question mark in ruby.

    user.birthday ? "x" : "y"
    
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