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Determine Whether Two Date Ranges Overlap
...a syntactical shortcut for what is a longer implementation, which includes extra checks to verify that the start dates are on or before the endDates. Deriving this from above:
If start and end dates can be out of order, i.e., if it is possible that startA > endA or startB > endB, then you a...
What is a Java ClassLoader?
...ollowing simple class:
public class HelloApp {
public static void main(String argv[]) {
System.out.println("Aloha! Hello and Bye");
}
}
If you run this class specifying the -verbose:class command-line option, so that it prints what classes are being loaded, you will get an output that...
Distinct() with lambda?
... great answer!!! also, for all VB_Complainers about the yield + extra lib, foreach can be re-written as return source.Where(element => knownKeys.Add(keySelector(element)));
– denis morozov
Mar 4 '14 at 16:51
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problem with and :after with CSS in WebKit
... This is a fantastic, simple, and elegant solution that requires no extra HTML which is exactly what I was looking for! Thanks! This should be the chosen answer IMO.
– KyleFarris
Jul 30 '18 at 23:41
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Are loops really faster in reverse?
...
i-- is as fast as i++
This code below is as fast as yours, but uses an extra variable:
var up = Things.length;
for (var i = 0; i < up; i++) {
Things[i]
};
The recommendation is to NOT evaluate the size of the array each time. For big arrays one can see the performance degradation.
...
How to make “if not true condition”?
...'ll just say that grep can take a file name on its cmd-line, so why invoke extra processes and pipe constructions when you don't have to? ;-)
I hope this helps.
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Virtual functions and performance - C++
...an instruction cache miss like a non-virtual function.
In many cases, two extra cache misses are not a concern, but in a tight loop on performance critical code it can dramatically reduce performance.
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Centering a div block without the width
...S rule. This is a good trick to center a div in a container without adding extra HTML nor applying constraining styles to the container (like text-align: center; which would center all other inline content in the container), while keeping dynamic width for the contained div:
HTML:
<div class="c...
Error: Can't set headers after they are sent to the client
...eader gets sent, but then further headers (like a 30X redirect) try to add extra headers, but it's too late since the response header has already been transmitted.
I'm not sure exactly what's causing your error, but look at any callbacks as potential areas to investigate.
One easy tip to simplify ...
How do I push amended commit to the remote Git repository?
... .git/config branch section).
And after
git push
Maybe you will get an extra commit with the subject telling about a "Trivial merge".
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