..." value in the array evaluates to true. Similar methods to this are none?, all? and one?, where they all just check to see how many times true could be evaluated. which has nothing to do with the count of values found in a array. case 1 >> a = [] => [] >> a.any? => false >> a...

... The ChildActionOnly attribute ensures that an action method can be called only as a child method from within a view. An action method doesn’t need to have this attribute to be used as a child action, but we tend to use this attribute to prevent the action methods from being invoked as a res...

... the GCC compiler. When my C++ program crashes I would like it to automatically generate a stacktrace. 28 Answers ...

...chnicus: header is "self-contained"). And the rest just seems to flow logically from there. share | improve this answer | follow | ...

...more for unit tests, so now I am playing the game of going around altering all the constructors to match, and it's taking ages. It makes me think that using properties with setters is a better way of getting dependencies. I don't think injected dependencies should be part of the interface to const...

... you want to treat as "a whole." It has to either happen in full or not at all. A classical example is transferring money from one bank account to another. To do that you have first to withdraw the amount from the source account, and then deposit it to the destination account. The operation has to ...

If I open files I created in Windows, the lines all end with ^M . How do I delete these characters all at once? 26 Answers...

...ect them to work. But keep in mind that a browser is free to ignore any or all of these guidelines, as it is never required to follow them. It is, however, recommended for a consistent user experience across browsers (which is how "expected" is defined in this context), so chances are that these col...

...window, the window loses its topmost status and is placed at the bottom of all other windows. HWND_NOTOPMOST= -2 在所有非"普通层"之上的"普通层" Places the window above all non-topmost windows (that is, behind all topmost windows). This flag has no effect if the window is already a n...

... so are numerous, to list some of them: Support for descriptors. Specifically, the following constructs are made possible with descriptors: classmethod: A method that receives the class as an implicit argument instead of the instance. staticmethod: A method that does not receive the implicit ar...