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Is there a regular expression to detect a valid regular expression?
Is it possible to detect a valid regular expression with another regular expression? If so please give example code below.
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What are good uses for Python3's “Function Annotations”
Function Annotations: PEP-3107
12 Answers
12
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Using semicolon (;) vs plus (+) with exec in find
Why is there a difference in output between using
6 Answers
6
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How to attach javadoc or sources to jars in libs folder?
New version of ADT r17 plugin for Eclipse added feature to automatically setup JAR dependencies. Any .jar files in the /libs folder are added to the build configuration now. Unfortunately Android Dependencies classpath container is non modifiable.
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How does Google's Page Speed lossless image compression work?
When you run Google's PageSpeed plugin for Firebug/Firefox on a website it will suggest cases where an image can be losslessly compressed, and provide a link to download this smaller image.
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Why git can't do hard/soft resets by path?
$ git reset -- <file_path> can reset by path.
7 Answers
7
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How do I check if an integer is even or odd? [closed]
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Use the modulo (%) operator to check if there's a remainder when dividing by 2:
if (x % 2) { /* x is odd */ }
A few people have criticized my answer above stating that using x & 1 is "faster" or "more efficient". I do not believe this to ...
Haskell composition (.) vs F#'s pipe forward operator (|>)
In F#, use of the the pipe-forward operator, |> , is pretty common. However, in Haskell I've only ever seen function composition, (.) , being used. I understand that they are related , but is there a language reason that pipe-forward isn't used in Haskell or is it something else?
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git pull while not in a git directory
Let's say I have a directory, /X/Y , which is a git repository. Is it possible to somehow call a command like git pull from inside /X , but targeting the /X/Y directory?
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How to get image height and width using java?
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Here is something very simple and handy.
BufferedImage bimg = ImageIO.read(new File(filename));
int width = bimg.getWidth();
int height = bimg.getHeight();
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