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Replace one character with another in Bash
...acters. It seems like bash's time complexity is worse than linear. A small test: x="$(tr -dc 'a-z \n' </dev/urandom | head -c1M)"; time y="$(tr ' ' \\- <<< "$x")"; time z="${x// /-}". With a string length of 1M (=2^20) tr took 0.04s and bash 5.0.11 took 17s. With 2M tr took 0.07s (expec...
Force CloudFront distribution/file update
... Invalidation request there: docs.amazonwebservices.com/AmazonCloudFront/latest/…
– j0nes
Jul 26 '12 at 6:50
For tho...
What is the native keyword in Java for?
..._HOME}/include/linux Main.c
java -Djava.library.path=. Main
Output:
4
Tested on Ubuntu 14.04 AMD64. Also worked with Oracle JDK 1.8.0_45.
Example on GitHub for you to play with.
Underscores in Java package / file names must be escaped with _1 in the C function name as mentioned at: Invoking J...
IIS_IUSRS and IUSR permissions in IIS8
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In my tests the name of the special user to use here has nothing to do with a domain name. It is the name of the Application Pool that is assigned to the site in IIS. This Application Pool may or may not have a name that matches th...
Imitate Facebook hide/show expanding/contracting Navigation Bar
...self.shyNavBarManager.scrollView = self.scrollView;
Oh, and it is battle tested in our own app.
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What is the difference between Trap and Interrupt?
...as positive the "Late Answer from a New User" review queue was giving me a test to make sure I was paying attention.
– Noumenon
Jun 1 '16 at 3:33
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Android studio: why are minSdkVersion and targetSdkVersion specified both in AndroidManifest.xml and
...cho21 This is a known bug with the Google Play store during alpha and beta testing. It should resolve when you push to prod. Not an authoritative source, but see answers.unity3d.com/questions/683972/…
– Tom Lubitz
Nov 24 '14 at 23:25
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File.separator vs FileSystem.getSeparator() vs System.getProperty(“file.separator”)?
... is that the class able to access his UNIX file-system? (I couldn't really test this because I do not have another FileSystem installed.)
– Pacerier
Nov 10 '11 at 6:21
1
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Use of Initializers vs Constructors in Java
...anding. I thought I would add this little demonstration as a comment. To test your understanding, see if you can predict the answer before reading it at the bottom.
/**
* Demonstrate order of initialization in Java.
* @author Daniel S. Wilkerson
*/
public class CtorOrder {
public static void...
Return all enumerables with yield return at once; without looping through
...at exactly do you mean that it will call the methods immediately? I ran a test and it looks like it's deferring the method calls completely until something is actually iterated. Code here: pastebin.com/0kj5QtfD
– Steven Oxley
Aug 9 '10 at 23:20
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