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How can I pair socks from a pile efficiently?
...sock segment" to bucket trivial. The socks can be tied to the vectors with string so that you don't need another linear pass at the end.
– Pointy
Jan 20 '13 at 21:31
49
...
Correct way to delete cookies server-side
...path(="/") and domain(=null) :
public static NewCookie createDomainCookie(String value, int maxAgeInMinutes) {
ZonedDateTime time = ZonedDateTime.now().plusMinutes(maxAgeInMinutes);
Date expiry = time.toInstant().toEpochMilli();
NewCookie newCookie = new NewCookie("name", value, "/", nu...
Client-server synchronization pattern / algorithm?
...complex object composed of many parts, but a key-value pair is but a short string or a number. Therefore, in this case we can use a more simple strategy of conflict resolution, considering the value more relevant, if it has been the last to change.
Syncing of data structured as a tree or a graph is ...
Apache Spark: map vs mapPartitions?
..."), 3)
val b = a.map(_.length)
val c = a.zip(b)
c.collect
res0: Array[(String, Int)] = Array((dog,3), (salmon,6), (salmon,6), (rat,3), (elephant,8))
mapPartitions
This is a specialized map that is called only once for each partition.
The entire content of the respective partitions is av...
List changes unexpectedly after assignment. How do I clone or copy it to prevent this?
...= Copy(obj[k], use_deepcopy)
elif t in dignore:
# Numeric or string/unicode?
# It's immutable, so ignore it!
pass
elif use_deepcopy:
obj = deepcopy(obj)
return obj
if __name__ == '__main__':
import copy
from time import time
num_times =...
Replace Fragment inside a ViewPager
... ? fragmentClass.getName().hashCode() : 0;
}
@Override
public String toString() {
return "TabInfo{" +
"fragmentClass=" + fragmentClass +
'}';
}
}
The very first time you add all tabs, we need to call the method createHistory(), to create the...
Inheriting class methods from modules / mixins in Ruby
...e of methods. To support these things, you can give class_eval a heredoc (string) instead of a block: base.class_eval <<-'END'
– Paul Donohue
May 15 at 15:10
add a comm...
Does PostgreSQL support “accent insensitive” collations?
...the function in the right expression. There you can also supply unaccented strings like 'Joao' directly.
The faster function does not translate to much faster queries using the expression index. That operates on pre-computed values and is very fast already. But index maintenance and queries not usi...
public friend swap member function
...ction is just noise. A member function allows for e.g. std::vector<std::string>().swap(someVecWithData);, which isn't possible with a swap free function because both arguments are passed by non-const reference.
– ildjarn
Apr 18 '11 at 1:34
...
What GRANT USAGE ON SCHEMA exactly do?
... webapp
# * you have to change '$ROLE_LOCAL', '$ROLE_REMOTE' and '$DB'
# strings with your desired names
# * it's preferable that $ROLE_LOCAL == $DB
#-------------------------------------------------------------------------------
//----------- SKIP THIS PART UNTIL POSTGRES JDBC ADDS SCRAM - STAR...