35 lines
632 B
Text
35 lines
632 B
Text
The intent was to return nil when the first value was nil.
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That was the op's issue.
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If one of the values was nil, she/he wanted nil.
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Nil && anything_else will always return nil, and I will not evaluate the
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second clause.
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> >>>>>>>>
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> It should be:
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> 2.0 && 2.0 + 12.0
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> <<<<<<<<<
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>
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> Ah! Yes, that works.
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>
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>
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People are intent on not understanding, aren't they.
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def nil_add_12 f
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f && f + 12.0
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end
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Generalised to two parameters:
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def nil_add a, b
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a && b && a + b
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end
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The only quirk is the way they handle `false`.
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This is not tested, but it may be possible to do this, too:
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f&.+ b
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Cheers
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