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Java's L number (long) specification
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There are specific suffixes for long (e.g. 39832L), float (e.g. 2.4f) and double (e.g. -7.832d).
If there is no suffix, and it is an integral type (e.g. 5623), it is assumed to be an int. If it is not an integral type (e.g. 3.14159), it is assumed to b...
what is .netrwhist?
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Related, if it's intended for remote files, why is it recording paths for local files?
– zaTricky
May 2 at 15:05
add a comment...
Scala @ operator
...ables one to bind a matched pattern to a variable. Consider the following, for instance:
val o: Option[Int] = Some(2)
You can easily extract the content:
o match {
case Some(x) => println(x)
case None =>
}
But what if you wanted not the content of Some, but the option itself? That wo...
What are the special dollar sign shell variables?
...r to be several variables which hold special, consistently-meaning values. For instance,
4 Answers
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How to enumerate an object's properties in Python?
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for property, value in vars(theObject).items():
print(property, ":", value)
Be aware that in some rare cases there's a __slots__ property, such classes often have no __dict__.
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Are there any standard exit status codes in Linux?
...#include <signal.h>
int main() {
int status;
pid_t child = fork();
if (child <= 0)
exit(42);
waitpid(child, &status, 0);
if (WIFEXITED(status))
printf("first child exited with %u\n", WEXITSTATUS(status));
/* prints: "first child exited with 42" ...
How can I manually generate a .pyc file from a .py file
For some reason, I can not depend on Python's "import" statement to generate .pyc file automatically
8 Answers
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Chrome, Javascript, window.open in new tab
...wsers, window.open will open in a new tab rather than a popup.
2. You can force a browser to use a new window (‘popup’) by specifying options in the 3rd parameter
3. If the window.open call was not part of a user-initiated event, it’ll open in a new window.
4. A “user initiated event” d...
Paging UICollectionView by cells, not screen
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OK, so I found the solution here: targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionViewFlowLayout
I should have searched for targetContentOffsetForProposedContentOffset in the begining.
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What's the use of ob_start() in php?
Is ob_start() used for output buffering so that the headers are buffered and not sent to the browser? Am I making sense here? If not then why should we use ob_start() ?
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