I have come across the following code in erb library. Note the double (( )):The following locatia= method is another version without the (( )) for testing:
I have a class like this:Simple usage:Since the "some-method" will be called quite frequently, I'd like to do something to allow users to use it like below:
How can I pass an argument to the definition of a singleton method of  on A, in other words A['some_argument']?
I made a typo in TypeScript which was picked up during code review. I used someArray.indexOf[someObject] instead of someArray.indexOf(someObject).
Why first way is correct, but second isn't?First way:Second way:And where can I find more information about it?
Why do the following lines give me the same result?andI tried to do the same with list.append but got a TypeError.
I try to chain some array and string methods but it doesn't work. It'd be great if anyone could explain to me why a function such as this doesn't work:
Given a object:Now given the templatized function declaration:So bar will be taking in a member function like so:
Q: Is there a way to alter a method of an existing object in Python (3.6)? (By "method" I mean a function that is passed self as an argument.)
I have just started learning Java for university with some excercises. I am not new to programming, only to Java. I have followed all instrucions, but Java's return function does some really weird things. I have inserted some debug outputs to better understand the code. CMD.output of the program is...