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Convert boolean result into number/integer
... answered Oct 19 '11 at 11:35
lonesomedaylonesomeday
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What is the size of ActionBar in pixels?
...e will resolve to 0 size on pre-3.0 devices. So when using ActionBarCompat one would stick to android.support.v7.appcompat.R.attr.actionBarSize instead.
– Drew
Jul 8 '14 at 9:55
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html select option separator
...ser would be confronted with rows of dashes and would have to examine each one to find out what was behind it.
– Quentin
May 22 '09 at 18:41
2
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How to create circle with Bézier curves?
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Yeah, since this one has a max deviation of +0.027% and a min deviation of -0 vs the true circle. It's only ever bigger than the real circle the better improved approximation is done by moving C in by half of 0.027%. If you want the midpoints...
How do you rename a MongoDB database?
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This is just to accomplish a rename of a single database in a standalone mongod instance. For replica sets the above would need to be done on every replica node, plus on each node every single oplog entry that refers this database would have to be somehow invalidated or rewritten, and then if ...
MySQL: Insert record if not exists in table
...022') AS tmp - but that will only work if table_listnames already contains one or more rows. I doubt the speed is any different though, so it's probably not a concern.
– Mike
Jul 2 '10 at 10:54
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Difference between staticmethod and classmethod
...at is the difference between a function decorated with @staticmethod and one decorated with @classmethod ?
27 Answers
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++someVariable vs. someVariable++ in JavaScript
...value of the expression is the original value"
Now when used as a standalone statement, they mean the same thing:
x++;
++x;
The difference comes when you use the value of the expression elsewhere. For example:
x = 0;
y = array[x++]; // This will get array[0]
x = 0;
y = array[++x]; // This wil...
Named regular expression group “(?Pregexp)”: what does “P” stand for?
In Python, the (?P<group_name>…) syntax allows one to refer to the matched string through its name:
3 Answers
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NullPointerException accessing views in onCreate()
... {
void exampleFragmentCallback();
}
private Button btnOne;
private Button btnTwo;
private Button btnThree;
private Callback callback;
@Override
public void onAttach(Activity activity)
{
super.onAttach(activity);
try
{
...