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Why does 2 mod 4 = 2?
... C + D (with D < B), then the quotient of the euclidian division of A
by B is C, and the remainder is D. If you divide 2 by 4, the quotient
is 0 and the remainder is 2.
Suppose you have A objects (that you can't cut). And you want to
distribute the same amount of those objects to B peo...
How to initialize an array in one step using Ruby?
...gs as the other answers above, note also that you can use enumerators in Ruby 1.8.7+ to create arrays; for example:
array = 1.step(17,3).to_a
#=> [1, 4, 7, 10, 13, 16]
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How to go about formatting 1200 to 1.2k in java
...
Entry<Long, String> e = suffixes.floorEntry(value);
Long divideBy = e.getKey();
String suffix = e.getValue();
long truncated = value / (divideBy / 10); //the number part of the output times 10
boolean hasDecimal = truncated < 100 && (truncated / 10d) != (truncated / 10)...
How do I get my C# program to sleep for 50 msec?
...
Since now you have async/await feature, the best way to sleep for 50ms is by using Task.Delay:
async void foo()
{
// something
await Task.Delay(50);
}
Or if you are targeting .NET 4 (with Async CTP 3 for VS2010 or Microsoft.Bcl.Async), you must use:
async void foo()
{
// something
...
What's the difference between JavaScript and JScript?
...ript runs in Internet Explorer, it has access to different objects exposed by the browser (such as ActiveXObject)
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How to use MySQLdb with Python and Django in OSX 10.6?
...have pip, easy_install MySQL-python should work.
If your python is managed by a packaging system, you might have to use
that system (e.g. sudo apt-get install ...)
Below, Soli notes that if you receive the following error:
EnvironmentError: mysql_config not found
... then you have a further ...
Jquery date picker z-index issue
...should be addressed in the JqueryUI scripts and be set to prevent overlays by default. Majority of usage cases would never want any input overlaying the calendar input capabilities. If there is a need to have input (or other elements) overlay the calendar, then a solution like this should be used....
What do the different readystates in XMLHttpRequest mean, and how can I use them?
...the request is not initialized. After that, any other "completion" (either by success or error) will update the readystate to 4. So losing internet after the transfer starts will flip it to 4, not back to 0. If there has never been internet when the transfer is attempted, it should still be at 0; it...
Github “Updates were rejected because the remote contains work that you do not have locally.”
...tting and that present on GitHub. It creates conflicts which can be solved by
git pull
Merge conflicts resolving:
git push
If you confirm that your new code is all fine you can use:
git push -f origin master
Where -f stands for "force commit".
...
What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
... character, or other non-integer type. In many cases, this can be inferred by the compiler, so it can be dropped--This is why "unsigned" is the same as "unsigned int", for example. The "int" part is simply assumed unless the programmer specifies something else, such as "char" or "double". As for the...