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I'm trying to port some Java code into Scala:

while ((j=f('blah'))>=0) ...

ERROR:"value >= is not a member of Unit"

Is this not possible?

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  • If you really need that, you're doin it rong... Commented Mar 4, 2013 at 9:36

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Assignments return () (unit) in Scala. But that's okay because you can put a code block anywhere. You need this instead:

while ({ j=f("blah"); j } >= 0) ...
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The reasoning for that can be found here: What is the motivation for Scala assignment evaluating to Unit rather than the value assigned?

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