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How to save an HTML5 Canvas as an image on a server?
...art project where I would like to allow users to save the resulting images from an algorithm. The general idea is:
8 Answer...
How to inspect the return value of a function in GDB?
..., fun () at test.c:2
2 return 42;
(gdb) finish
Run till exit from #0 fun () at test.c:2
main () at test.c:7
7 return 0;
Value returned is $1 = 42
(gdb)
The finish command can be abbreviated as fin. Do NOT use the f, which is abbreviation of frame command!
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Practical example where Tuple can be used in .Net 4.0?
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Probably worth pointing out from MSDN: "Any public static members of this type are thread safe. Any instance members are not guaranteed to be thread safe."
– Matt Borja
Nov 17 '15 at 20:43
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How to create a cron job using Bash automatically without the interactive editor?
...ng the editor (crontab -e). If so, What would be the code create a cronjob from a Bash script?
20 Answers
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How does an underscore in front of a variable in a cocoa objective-c class work?
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From what I understand, Apple recommends against using the underscore prefix on method names (they reserve that for themselves as a convention for private methods), but they don't have any such recommendation about instance v...
How to run Gulp tasks sequentially one after the other
...ering why there is no official documentation for gulp.start(), this answer from gulp member explains that: gulp.start is undocumented on purpose because it can lead to complicated build files and we don't want people using it (source: github.com/gulpjs/gulp/issues/426#issuecomment-41208007)
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How to load JAR files dynamically at Runtime?
... jar file
jcl.add(new URL("http://myserver.com/myjar.jar")); // Load jar from a URL
jcl.add(new FileInputStream("myotherjar.jar")); // Load jar file from stream
jcl.add("myclassfolder/"); // Load class folder
jcl.add("myjarlib/"); // Recursively load all jar files in the folder/sub-folder(s)
Jc...
Change “on” color of a Switch
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As of now it is better to use SwitchCompat from the AppCompat.v7 library. You can then use simple styling to change the color of your components.
values/themes.xml:
<style name="Theme.MyTheme" parent="Theme.AppCompat.Light">
<!-- colorPrimary is used fo...
Java time-based map/cache with expiring keys [closed]
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As from v10, you should be using CacheBuilder instead (guava-libraries.googlecode.com/svn/trunk/javadoc/com/google/…) since expiration etc have been deprecated in MapMaker
– wwadge
Sep 14...
What is a higher kinded type in Scala?
...a that supports anonymous type functions, you could shorten that last line from the examples to:
types (informally) String [x] => x [F[x]] => F[String]) // I repeat, this is not valid Scala, and might never be
(On a personal note, I regret ever having talked about "higher-kind...