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Does pandas iterrows have performance issues?
...ou use a function with a try-catch), they are good for a lot of use cases (string/regex stuff) where pandas methods do not have vectorized (in the truest sense of the word) implementations. Do you think it is worth mentioning LCs are a faster, lower overhead alternative to pandas apply and many pand...
What is AF_INET, and why do I need it?
... in Python socket module) addresses are represented as follows:
A single string is used for the AF_UNIX/AF_LOCAL address family. This option is used for IPC on local machines where no IP address is required.
A pair (host, port) is used for the AF_INET address family, where host is a string represe...
What is the difference between lock and Mutex?
...g system construct, and can be used for system-wide synchronization, using string data (instead of a pointer to data) as its identifier. Two mutexes that reference two strings in two completely different memory addresses, but having the same data, will actually utilize the same operating-system mut...
Is there a way to quickly capitalize the variable name in Eclipse
... This function is to change the case of the entire selected string. This is not capitalization, which changes the case only for the first letter of the selected string. I really doubt that one existed back in 2011, I have been searching myself back then.
– kostja...
What does `someObject.new` do in Java?
...thod(){
return new TestInner();
}
public static void main(String[] args) throws Exception{
Test t = new Test();
Test.TestInner ti = t.new TestInner();
}
}
Using javap we can view instructions generated for this code
Main method:
public static void main(java.l...
'size_t' vs 'container::size_type'
...
For std::[w]string, std::[w]string::size_type is equal to std::allocator<T>::size_type, which is equal to the std::size_t. For other containers, it's some implementation defined unsigned integer type.
Sometimes it's useful to hav...
How do I break out of a loop in Perl?
...found it. You use last instead of break
for my $entry (@array){
if ($string eq "text"){
last;
}
}
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Valid values for android:fontFamily and what they map to?
...not list this information in any place (I checked here , and here ). The strings are listed in the Android styles.xml file in various places, but how do these map back to the Roboto font?
...
Switch case with fallthrough?
...sh unless you like to define them.
use [23] in case to match 2 or 3
static string cases should be enclosed by '' instead of ""
If enclosed in "", the interpreter (needlessly) tries to expand possible variables in the value before matching.
case "$C" in
'1')
do_this
;;
[23])
do_what_...
Naming convention for Scala constants?
...al lowerConst = "lower"
val UpperConst = "UPPER"
def main(args: Array[String]) {
for (i <- Seq(lowerConst, UpperConst, "should mismatch.").map(Option.apply)) {
print("Input '%s' results in: ".format(i))
i match {
case Some(UpperConst) => println("UPPER!!!")
...