...use Self or associatedtype keywords in their definitions (and Equatable is one of them). In some cases it's possible to use a type-erased wrapper to make your collection homomorphic. Below is an example. // This protocol doesn't provide polymorphism over the types which implement it. protocol X: E...

...and pass in your type parameter as the type argument, pushing the decision one level higher up the stack? If you could give us more information about what you're doing, that would help. Sometimes you may need to use reflection as above, but if you pick the right point to do it, you can make sure yo...

...riables aren't really global in PHP. The scope of a typical PHP program is one HTTP request. Session variables actually have a wider scope than PHP "global" variables because they typically encompass many HTTP requests. Often (always?) you can call member functions in methods like preg_replace_call...

...here are bound to be zero bytes somewhere in your code, so I don't see how one more would make much difference. Anyway, who cares if you can trick a program into reading code as data. The real problem is executing data as code. – Stephen C Sep 8 '09 at 22:36 ...

...o the GIL the app isn't actually doing two things at once, but what we've done is put the resource lock on the database into a separate thread so that CPU time can be switched between it and the user interaction. CPU time gets rationed out between the threads. Multiprocessing is for times when you ...

...better. str.matches("-?\\d+"); -? --> negative sign, could have none or one \\d+ --> one or more digits It is not good to use NumberFormatException here if you can use if-statement instead. If you don't want leading zero's, you can just use the regular expression as follow: str....

... only fall back to "theirs" logic in case of conflicts. While this is what one needs in most cases like above, this is not the same as "just take everything from branch B as is". It does the real merge instead anyway. – Timur Oct 14 '13 at 11:57 ...

...his answer is incorrect. Getting a list when you want an element only postpones the inevitable "list index out of range" - and that's what should happen when attempting to get an element from an empty list. For Strings astr[-1:] could be a valid approach since it returns the same type as astr[-1], b...

... is LDAP. The use model is similar like how people use library cards or phonebooks. When you have a task that requires “write/update once, read/query many times”, you might consider using LDAP. LDAP is designed to provide extremely fast read/query performance for a large scale of dataset. Typic...

... Nothing wrong with the other answers but this one offers a non-programmatic solution that may be useful in situations where one has a small static table. The benefit is that one can organize the localizations using the storyboard. One may continue to export local...