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Find if variable is divisible by 2
...iot for asking the question...which (for all the others who don't already know) is a big deal to new jQuery/Javascript developers.
– sadmicrowave
May 13 '10 at 11:54
6
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Understanding exactly when a data.table is a reference to (vs a copy of) another data.table
...avoid for large data, and why := and set() were introduced to data.table.
Now, with our copied newDT we can modify it by reference :
newDT
# a b
# [1,] 1 11
# [2,] 2 200
newDT[2, b := 400]
# a b # See FAQ 2.21 for why this prints newDT
# [1,] 1 11
# [2,] 2 400
.Internal(in...
How to hide 'Back' button on navigation bar on iPhone?
...
Don't forget that we have the slide to back gesture now. You probably want to remove this as well. Don't forget to enable it back again if necessary.
if ([self.navigationItem respondsToSelector:@selector(hidesBackButton)]) {
self.navigationItem.hidesBackButton = YES;
}
i...
How to return multiple values? [duplicate]
...function returning multiple values. Though using Map feels better approach now.
– Mahesha999
Sep 18 '15 at 8:52
I woul...
How to split a delimited string in Ruby and convert it to an array?
... It splits a string into an array of its characters.
hmmm, I just realize now that in the original question the string contains commas, so my answer is not really helpful ;-(..
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When to use std::forward to forward arguments?
...nally, you need forward to turn the lvalue-turned x (because it has a name now!) back into an rvalue reference if it was one initially.
You should not forward something more than once however, because that usually does not make sense: Forwarding means that you're potentially moving the argument all...
Why do pthreads’ condition variable functions require a mutex?
... condition variable; it is to protect the predicate data, but I think you know that from reading your comment that followed that statement. You can signal a condition variable legally, and fully supported by implementations, post-unlock of the mutex wrapping the predicate, and in fact you'll will re...
Why is there an “Authorization Code” flow in OAuth2 when “Implicit” flow works so well?
...oken if you are not using en encrypted connection (HTTPS) allowing what's known as Man-in-the-middle attacks.
Passing the access token directly in a URL param could in theory be possible but the auth sever would have to make sure the redirect URI is using HTTPS with TLS encryption and a 'trusted' S...
Compare two objects and find the differences [duplicate]
... a good start for what you are asking. It only looks at Field values right now, but you could add any number of other components for it to check through reflection. It's implemented using an extension method so all of your objects could use it.
TO USE
SomeCustomClass a = new SomeCustomClass();...
Why doesn't the example compile, aka how does (co-, contra-, and in-) variance work?
...on is [A] rather than [+A]).
Note that there is another type of variance known as contravariance. This is very important as it explains why covariance can cause some issues. Contravariance is literally the opposite of covariance: parameters vary upward with subtyping. It is a lot less common par...