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Should the folders in a solution match the namespace?
...fit in my opinion of using multiple namespaces in large projects is having extra organization when viewing classes in any tooling that displays classes in a namespaces hierarchy. Even documentation. Obviously having just one namespace in the project results in all classes being displayed in a single...
How do I set up a simple delegate to communicate between two view controllers?
...nto your SecondVC
protocol DataDelegate {
func sendData(data : String)
}
class ViewControllerB : UIViewController {
//Declare the delegate property in your SecondVC
var delegate : DataDelegate?
var data : String = "Send data to ViewControllerA."
over...
Is an entity body allowed for an HTTP DELETE request?
...ompletely identify the resource to delete. However, is it allowable to add extra meta-data as part of the entity body of the request?
...
Does Redis persist data?
...operation can only be performed if you have enough free RAM (the amount of extra RAM is equal to the size of redis DB)
N.B.: BGSAVE RAM requirement is a real problem, because redis continues to work up until there is no more RAM to run in, but it stops saving data to HDD much earlier (at approx. ...
What are forward declarations in C++?
...ractise and I recommend trying it. However, it can take a some effort and extra lines of code that may need to be maintained and updated if type names etc are still being changed (although tools are getting better at renaming stuff automatically). So there is a tradeoff. I've seen code bases where ...
How Many Seconds Between Two Dates?
... you're correct so I deleted my comment.. one of my "dates" was actually a string. This works perfectly.
– user3344977
Oct 11 '16 at 21:42
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Chaining multiple filter() in Django, is this a bug?
I always assumed that chaining multiple filter() calls in Django was always the same as collecting them in a single call.
4...
How do I avoid capturing self in blocks when implementing an API?
...ied inside the block (we're not doing that) but also they are not automatically retained when the block is retained (unless you are using ARC). If you do this, you must be sure that nothing else is going to try to execute the block after the MyDataProcessor instance is released. (Given the structure...
How do JavaScript closures work?
...clared outside the function, regardless of when and where the function is called.
If a function was called by a function, which in turn was called by another function, then a chain of references to outer lexical environments is created. This chain is called the scope chain.
In the following code, in...
Object.getOwnPropertyNames vs Object.keys
...rence is in case of array Object.getOwnPropertyNames method will return an extra property that is length.
var x = ["a", "b", "c", "d"];
Object.keys(x); //[ '0', '1', '2', '3' ]
Object.getOwnPropertyNames(x); //[ '0', '1', '2', '3', 'length' ]
...