Elvis operator correction in #234 - Roundup 09 - Project Coin
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Hamlet D'Arcy
Mar 26, 2009, 10:19:14 AM3/26/09
to The Java Posse
It doesn't look like anyone pointed this out yet... but the show and
show notes for #234 refer to .? as the elvis operator, which it is
not.
.? is the null safe dereference (or null safe member selection or
safe navigation operator). It is not called elvis.
?: is the elvis operator, which is a sort of short hand ternary
operator for dealing with nulls.
Neal Gafter's google doc on the topic does a good job differentiating
between the two: http://docs.google.com/Doc?docid=ddb3zt39_78frdf87dc&hl=en
show notes for #234 refer to .? as the elvis operator, which it is
not.
.? is the null safe dereference (or null safe member selection or
safe navigation operator). It is not called elvis.
?: is the elvis operator, which is a sort of short hand ternary
operator for dealing with nulls.
Neal Gafter's google doc on the topic does a good job differentiating
between the two: http://docs.google.com/Doc?docid=ddb3zt39_78frdf87dc&hl=en
Robert Fischer
Mar 26, 2009, 10:26:44 AM3/26/09
to java...@googlegroups.com
?. is the null safe dereference (not .?).
?: is the Elvis operator, so named because it's the start of the Elvis smiley: ?:)
~~ Robert Fischer.
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