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What are named pipes?
...(open, close, write, read, etc).
To create a named pipe, called "myPipe", from the command line (man page):
mkfifo myPipe
To create a named pipe from c, where "pathname" is the name you would like the pipe to have and "mode" contains the permissions you want the pipe to have (man page):
#...
How to check if character is a letter in Javascript?
... The code only tests whether the character is one of the basic letter from a to z (very few languages are written using only those letters). This is very different from the Java function that was mentioned.
– Jukka K. Korpela
Mar 25 '12 at 19:19
...
proper hibernate annotation for byte[]
...ty?
It depends on what you want. JPA can persist a non annotated byte[]. From the JPA 2.0 spec:
11.1.6 Basic Annotation
The Basic annotation is the simplest
type of mapping to a database column.
The Basic annotation can be applied
to a persistent property or instance
variable of ...
Using Gulp to Concatenate and Uglify files
...st('dist'));
});
gulp.task('default', ['js-fef'], function(){});
Coming from grunt it was a little confusing at first but it makes sense now. I hope it helps the gulp noobs.
And, if you need sourcemaps, here's the updated code:
var gulp = require('gulp'),
gp_concat = require('gulp-concat'),...
How do I convert a String to an int in Java?
... do something else if you like.)
Alternatively, you can use an Ints method from the Guava library, which in combination with Java 8's Optional, makes for a powerful and concise way to convert a string into an int:
import com.google.common.primitives.Ints;
int foo = Optional.ofNullable(myString)
.m...
How should I validate an e-mail address?
What's a good technique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp?
...
Extract a part of the filepath (a directory) in Python
......
And you can continue doing this as many times as necessary...
Edit: from os.path, you can use either os.path.split or os.path.basename:
dir = os.path.dirname(os.path.dirname(file)) ## dir of dir of file
## once you're at the directory level you want, with the desired directory as the final p...
runOnUiThread vs Looper.getMainLooper().post in Android
...
The following behaves the same when called from background threads:
using Looper.getMainLooper()
Runnable task = getTask();
new Handler(Looper.getMainLooper()).post(task);
using Activity#runOnUiThread()
Runnable task = getTask();
runOnUiThread(task);
The only ...
Capture screenshot of active window?
...new Bitmap(bounds.Width, bounds.Height))
{
using(Graphics g = Graphics.FromImage(bitmap))
{
g.CopyFromScreen(Point.Empty, Point.Empty, bounds.Size);
}
bitmap.Save("test.jpg", ImageFormat.Jpeg);
}
for capturing current window use
Rectangle bounds = this.Bounds;
using (Bi...
How to detect my browser version and operating system using JavaScript?
...-date, unless you use some sort of global database to get that information from; since this is entirely proprietary. Maybe some day, Google, W3 etc. will offer an API to crowdsource and make publicly available all the different system names and their relations that they gather from their users.
...