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Inherit from a generic base class, apply a constraint, and implement an interface in C#
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answered Jan 5 '10 at 16:30
Adam RobinsonAdam Robinson
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Why is an int in OCaml only 31 bits?
...pointer dererefences plus one object construction. And you take up almost 20 Byte.
However, the trick is that with so-called immutable value types like integers, you usually don't need all the metadata in the object header: you can just leave all that stuff out, and simply synthesize it (which is V...
What is the difference between object keys with quotes and without quotes?
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answered Dec 3 '10 at 18:10
bdukesbdukes
131k1919 gold badges136136 silver badges170170 bronze badges
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getSupportActionBar from inside of Fragment ActionBarCompat
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290
After Fragment.onActivityCreated(...) you'll have a valid activity accessible through getActivit...
Python extract pattern matches
...> result = p.search(s)
>>> result
<_sre.SRE_Match object at 0x10555e738>
>>> result.group(1) # group(1) will return the 1st capture (stuff within the brackets).
# group(0) will returned the entire matched text.
'my_user_name'
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How to get the first five character of a String
... you can use String.Substring.
string str = yourStringVariable.Substring(0,5);
Remember that String.Substring could throw an exception in case of string's length less than the characters required.
If you want to get the result back in string then you can use:
Using String Constructor and LI...
Callback after all asynchronous forEach callbacks are completed
...r
function callback () { console.log('all done'); }
var itemsProcessed = 0;
[1, 2, 3].forEach((item, index, array) => {
asyncFunction(item, () => {
itemsProcessed++;
if(itemsProcessed === array.length) {
callback();
}
});
});
(thanks to @vanuan and others) This appro...
Why prefer two's complement over sign-and-magnitude for signed numbers?
..., 2 and -1. In your "intuitive" way of representing numbers, they would be 0010 and 1001, respectively (I'm sticking to 4 bits for size). In the two's complement way, they are 0010 and 1111. Now, let's say I want to add them.
Two's complement addition is very simple. You add numbers normally and an...
How to get all child inputs of a div element (jQuery)
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308
Use it without the greater than:
$("#panel :input");
The > means only direct children of ...
Is it safe to ignore the possibility of SHA collisions in practice?
...han 2n/2). For instance, with SHA-256 (n=256) and one billion messages (p=109) then the probability is about 4.3*10-60.
A mass-murderer space rock happens about once every 30 million years on average. This leads to a probability of such an event occurring in the next second to about 10-15. That's 4...