大约有 38,000 项符合查询结果（耗时：0.0449秒） [XML]
Java 8: performance of Streams vs Collections
...aced with Iterable.forEach() and Collection.removeIf() calls). Streams are more about coding convenience and safety. Convenience -- speed tradeoff is working here.
share
|
improve this answer
...
Picking a random element from a set
...andom().nextInt(size); // In real life, the Random object should be rather more shared than this
int i = 0;
for(Object obj : myhashSet)
{
if (i == item)
return obj;
i++;
}
share
|
i...
All but last element of Ruby array
...s all over the place, you always have the option of adding a method with a more friendly name to the Array class, like DigitalRoss suggested. Perhaps like this:
class Array
def drop_last
self[0...-1]
end
end
...
Finding Key associated with max Value in a Java Map
...
+1: You can have more than one key with the same maximum value. This loop will give you the first one it finds.
– Peter Lawrey
May 6 '11 at 12:19
...
What are the risks of running 'sudo pip'?
...es somewhere else (e.g. in an virtualenv). Doing so may even be better and more reliable even when ignoring all security concerns.
– user395760
Jan 10 '14 at 23:48
2
...
Is there a way to get a collection of all the Models in your Rails app?
...
|
show 8 more comments
403
...
Commenting in a Bash script inside a multiline command
... Thanks for the explanation. I've opened a question on unix.sx asking for more details, bash multi line command with comments after the continuation character.
– Faheem Mitha
Aug 21 '11 at 15:18
...
Is Chrome's JavaScript console lazy about evaluating arrays?
...
|
show 1 more comment
22
...
How to sort an array by a date property
...ve, positive, or zero.
return new Date(b.date) - new Date(a.date);
});
More Generic Answer
array.sort(function(o1,o2){
if (sort_o1_before_o2) return -1;
else if(sort_o1_after_o2) return 1;
else return 0;
});
Or more tersely:
array.sort(function(o1,o2){
retur...
Getting the names of all files in a directory with PHP
...e simple answer and all the relevant files for my use case would be *.*. A more robust expression would make this an even better answer.
– TecBrat
May 24 '17 at 17:08
...