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On logout, clear Activity history stack, preventing “back” button from opening logged-in-only Activi
...esearching this issue and reading all of these StackOverflow threads. I am now newly initiated and I leave here trace of my humble experience to help a future pilgrim.
First, there is no obvious or immediate way to do this per my research (as of September 2012). You'd think you could simple startAc...
Red black tree over avl tree
... balance factor at each node. This takes O(N) extra space. However, if we know that the keys that will be inserted in the tree will always be greater than zero, we can use the sign bit of the keys to store the colour information of a red-black tree. Thus, in such cases red-black tree takes no extra ...
What's the $unwind operator in MongoDB?
...s.funded_year"
} }
])
If we look at the funding_rounds array, we know that for each funding_rounds, there is a raised_amount and a funded_year field. So, unwind will for each one of the documents that are elements of the funding_rounds array produce an output document. Now, in this example,...
How can I find my Apple Developer Team id and Team Agent Apple ID?
...d. I have found it before and I have searched for 30 min without any luck now that i need it.
6 Answers
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Group by multiple columns in dplyr, using string vector input
...as the expression is wrapped in a call to vars().
– knowah
Aug 15 '19 at 14:13
@Khashir yes, this answer still works @...
Comma in C/C++ macro
...tructs behind the macro become dependent types, and the typename prefix is now required on the type. You can add it, but type deduction has been broken, so you now have to manually list the type arguments to call the function. I ended up using temple's method of defining a macro for the comma. It mi...
Combining multiple commits before pushing in Git [duplicate]
...
Anyone know if you can have a multiple lined commit msg in your "pick" line, or will it confuse the parser?
– EhevuTov
Oct 9 '14 at 20:44
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Getting “unixtime” in Java
...a 8 you can use
import java.time.Instant
...
long unixTimestamp = Instant.now().getEpochSecond();
Instant.now() returns an Instant that represents the current system time. With getEpochSecond() you get the epoch seconds (unix time) from the Instant.
...
async at console app in C#? [duplicate]
... Console.WriteLine("Core NLPS Server: Started on port 8080. " + DateTime.Now);
while(line != "quit")
{
Console.Write(": ");
line = Console.ReadLine().ToLower();
Console.WriteLine(line);
if(line == "?" || line == "help")
...
Connecting overloaded signals and slots in Qt 5
...amp;QSpinBox::valueChanged),
slider, &QSlider::setValue);
I know, it's ugly. But there's no way around this. Today's lesson is: do not overload your signals and slots!
Addendum: what's really annoying about the cast is that
one repeats the class name twice
one has to specify the ...