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Performance of FOR vs FOREACH in PHP
First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and...
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How to synchronize a static variable among threads running different instances of a class in Java?
...s on the class object.
public class Test {
private static int count = 0;
public static synchronized void incrementCount() {
count++;
}
}
Explicitly synchronize on the class object.
public class Test {
private static int count = 0;
public void incrementCount() {
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Check if a string contains a string in C++
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Guy Avraham
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answered Feb 26 '10 at 8:24
Matthieu N.Matthieu N...
How to split a sequence into two pieces by predicate?
...ing partition method:
scala> List(1,2,3,4).partition(x => x % 2 == 0)
res0: (List[Int], List[Int]) = (List(2, 4),List(1, 3))
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Create a pointer to two-dimensional array
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How to run a background task in a servlet based web application?
...ples:
@Singleton
public class BackgroundJobManager {
@Schedule(hour="0", minute="0", second="0", persistent=false)
public void someDailyJob() {
// Do your job here which should run every start of day.
}
@Schedule(hour="*/1", minute="0", second="0", persistent=false)
pu...
How does collections.defaultdict work?
...efault items are created using int(), which will return the integer object 0. For the second example, default items are created using list(), which returns a new empty list object.
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How do I detect the Python version at runtime? [duplicate]
...check that you are running Python 3.x, use
import sys
if sys.version_info[0] < 3:
raise Exception("Must be using Python 3")
Here, sys.version_info[0] is the major version number. sys.version_info[1] would give you the minor version number.
In Python 2.7 and later, the components of sys.ve...
Pandas convert dataframe to array of tuples
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Why does PHP consider 0 to be equal to a string?
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You are doing == which sorts out the types for you.
0 is an int, so in this case it is going to cast 'e' to an int. Which is not parsable as one and will become 0. A string '0e' would become 0 and would match!
Use ===
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