Does it ever make sense to use double-bang (!!) af...
# announcementsv
vibin
03/28/2018, 7:26 AMDoes it ever make sense to use double-bang (!!) after safe operator (?.) in a kotlin expression, considering non-nullable properties of a nullable receiver are nullable?
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class Foo(val bar: Bar)
var foo: Foo? = null
foo?.bar!! // will crash when foo is null đŸ’€p
prasham.h.trivedi
03/28/2018, 7:30 AMThis code will throw exception when foo is not null but bar is null.
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vibin
03/28/2018, 7:31 AMthat’s true, but my point was it’ll also throw exception when foo is null and bar is not
vibin
03/28/2018, 7:32 AMupdated the snippet to make it clear
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prasham.h.trivedi
03/28/2018, 8:34 AMwhen foo is null. Foo.bar will also be null. I don't think it's possible to have non null member when object itself is null
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