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How do I validate a date string format in python?

...l parsing examples. It also handles timezones if you need that. Update based on comments: parse also accepts the keyword argument dayfirst which controls whether the day or month is expected to come first if a date is ambiguous. This defaults to False. E.g. >>> parse('11/12/2001') >...
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What does middleware and app.use actually mean in Expressjs?

...r. The most common middleware functionality needed are error managing, database interaction, getting info from static files or other resources. To move on the middleware stack the next callback must be called, you can see it in the end of middleware function to move to the next step in the flow. Yo...
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Aspect Oriented Programming vs. Object-Oriented Programming

...zed common error) in which behavior in one part of a program varies wildly based on difficult or impossible to identify operations in another part of the program. As a newbie to a project, I might just read the code of any set-method and consider it broken, as it seems to not update the display. I ...
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Appending a vector to a vector [duplicate]

... C, EnableFuncIf< !has_size_method<C>::value && std::is_base_of< std::random_access_iterator_tag, IteratorCategory<Iterator<C>> >::value, 2>... > std::size_t size_at_least( C&& c ) { using std::begin; using std::end; return end(c)-begin(c); };...
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Should I hash the password before sending it to the server side?

...eliable way to generate (and reliably re-generate) an authentication "key" based on the original text chosen by the user. In an ideal world this text should immediately generate a "key" by hashing it using irreversible salt. This salt should be unique to the user credential being generated. This ...
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Which is more efficient: Multiple MySQL tables or one large table?

I store various user details in my MySQL database. Originally it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tabl...
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Why is there “data” and “newtype” in Haskell? [duplicate]

...tructor, CAN be not evaluated at all * Used to create higher level concept based on existing type with distinct set of supported operations or that is not interchangeable with original type (example: Meter, Cm, Feet is Double) type - creates an alternative name (synonym) for a type (like typedef i...
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What does passport.session() middleware do?

...one(err, user); }); }); This will find the correct user from the database and pass it as a closure variable into the callback done(err,user); so the above code in the passport.session() can replace the 'user' value in the req object and pass on to the next middleware in the pile. ...
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How to save traceback / sys.exc_info() values in a variable?

...gt;", line 2, in <module> ValueError: invalid literal for int() with base 10: 'k' You should however take a look at the traceback documentation, as you might find there more suitable methods, depending to how you want to process your variable afterwards... ...
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What is the advantage of using Restangular over ngResource?

...urce Anyway, as a sum up, besides the additional features and the promise based approach, the idea is that Restangular can also handle all of your URLs, so that you don't have to know anything about them. Suppose that you have something like this for cars : /users/123/cars/456 In $resource, You'd...