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Why do you have to call .items() when iterating over a dictionary in Python?
...-- which is a check I believe I may have performed, or wanted to perform, 100 times more rarely than what if k in C actually means, checking the presence of the key only and completely ignoring the value.
On the other hand, wanting to loop just on keys is quite common, e.g.:
for k in thedict:
...
How to get the parents of a merge commit in git?
...es of its parents:
$ git log -1 395f65d
commit 395f65d438b13fb1fded88a330dc06c3b0951046
Merge: 9901923 d28790d
...
git outputs parents according to their number: the first (leftmost) hash is for the first parent, and so on.
If all you want is just the hashes, the two equivalent choices are:
...
Timer & TimerTask versus Thread + sleep in Java
...void run() { NewUploadServer.getInstance().checkAndUploadFiles(); }
}, 0, 60 * 1000);
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What is the purpose of @SmallTest, @MediumTest, and @LargeTest annotations in Android?
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answered Aug 11 '17 at 14:02
azizbekianazizbekian
50.1k99 gold badges131131 silver badges214214 bronze badges
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What does “javascript:void(0)” mean?
...
1081
The void operator evaluates the given
expression and then returns undefined.
The voi...
Oracle PL/SQL - How to create a simple array variable?
...for a fixed-size array:
declare
type array_t is varray(3) of varchar2(10);
array array_t := array_t('Matt', 'Joanne', 'Robert');
begin
for i in 1..array.count loop
dbms_output.put_line(array(i));
end loop;
end;
Or TABLE for an unbounded array:
...
type array_t is table of v...
What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
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edited Oct 6 '16 at 19:40
Victor Stafusa
12.1k99 gold badges5252 silver badges6767 bronze badges
answe...
Redis key naming conventions?
...ma. For instance "object-type:id:field" can be
a nice idea, like in "user:1000:password". I like to use dots for
multi-words fields, like in "comment:1234:reply.to".
Are you able to query for just the beginning of the key to return all
users?
If you mean someting like directly querying for a...
Can a class extend both a class and implement an Interface
...
180
Try it the other way around:
class database extends mysqli implements databaseInterface { ...}
...
How to check if a value exists in an array in Ruby
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edited Apr 29 '16 at 12:02
Arslan Ali
15.7k77 gold badges4545 silver badges6363 bronze badges
answered...
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