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Cartesian product of multiple arrays in JavaScript
...simple thing, when two lines of vanilla JavaScript can easily get the job done. As you can see it really pays off to use modern features of the language and in cases where you need to support archaic platforms with no native support of the modern features you can always use Babel, TypeScript or othe...
Django - How to rename a model field using South?
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The one problem I have with this method is that db.rename_column does not rename the constraints associated with the column. The migration will still work but you'll have constraints named after the old column name. I had a colum...
Getting the array length of a 2D array in Java
...he length of a 2D array for both the row and column. I’ve successfully done this, using the following code:
12 Answers
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Android: How to turn screen on and off programmatically?
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I would suggest this one:
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK | PowerManager.ACQUIRE_CAUSES_WAKEUP, "tag");
wl.acquire();
The flag ACQUIRE_CAUSES_WAKEUP is explained like that:
Normal wake locks d...
Parsing JSON with Unix tools
...k, but is a little more cumbersome to use than jq, and depends on a standalone JavaScript interpreter being installed which is less common than a Python interpreter, so the above answers are probably preferable:
curl -s 'https://api.github.com/users/lambda' | jsawk -a 'return this.name'
This answ...
Difference between class and type
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TLDR - Class is one of the Type in Java.
Note - To fully understand the answer, you must have a little idea about generics in Java.
To understand the difference let us first understand what a Type is in Java.
According to JLS SE 10 ,
...
What's the difference of ContentType and MimeType
...ittle
use outside it?
What's the main difference between the
each one, and when is right to call
something mimetype as opposed to
content-type ? Am i being pitty and
grammar nazi?
The reason isn't only backward compatibility, and I'm afraid the usually excellent Django documentation...
Draw in Canvas by finger, Android
...et();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
touch_start(x, y);
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Gradle build without tests
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The accepted answer is the correct one.
OTOH, the way I previously solved this was to add the following to all projects:
test.onlyIf { ! Boolean.getBoolean('skip.tests') }
Run the build with -Dskip.tests=true and all test tasks will be skipped.
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Select multiple records based on list of Id's with linq
...to explicitly write == anywhere when you're trying to compare the items of one set (the array) against another (the database table).
– Yuck
May 29 '13 at 22:00
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