• bearophile <bearophileHUGS lycos.com> Dec 01 2009
• =?UTF-8?B?UGVsbGUgTcOlbnNzb24=?= <pelle.mansson gmail.com> Dec 01 2009

bearophile <bearophileHUGS lycos.com> writes:

KennyTM~:
 Make "x in y" returns a bool and works for arrays.


That's something more useful than the sum of usefulness of opDispatch, opPow
and opLength. You use it all the time in code, and in D it's even more useful
than in Python because in D a small linear scan can be very fast. To do that in
my dlibs I use the function isIn(item, items), where items can be an AA too of
course.

Bye,
bearophile

=?UTF-8?B?UGVsbGUgTcOlbnNzb24=?= <pelle.mansson gmail.com> writes:

bearophile wrote:
 KennyTM~:
 Make "x in y" returns a bool and works for arrays.


 That's something more useful than the sum of usefulness of opDispatch, opPow
and opLength. You use it all the time in code, and in D it's even more useful
than in Python because in D a small linear scan can be very fast. To do that in
my dlibs I use the function isIn(item, items), where items can be an AA too of
course.
 
 Bye,
 bearophile


the time.

compare:

if (x in [1, 2, 3]) { }

if (x == 1 || x == 2 || x == 3) { }


I find the first one prettier. :)