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Is there a difference between “raise exception()” and “raise exception” without parenthesis?

...h raise MyException and raise MyException() do the same thing. This first form auto instantiates your exception. The relevant section from the docs says, "raise evaluates the first expression as the exception object. It must be either a subclass or an instance of BaseException. If it is a class, t...
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What's valid and what's not in a URI query?

...dded], then the conflicting data must be percent-encoded before the URI is formed. reserved = gen-delims / sub-delims gen-delims = ":" / "/" / "?" / "#" / "[" / "]" / "@" sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "=" 3.3. Path Compone...
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Nullable Foreign Key bad practice?

...option. At least it does not violate normalization BCNF (Boyce-Codd normal form). however I would favor being pragmatic. If you have very few of these null values and they are only temporary I think you should skip the link table since it only adds complexity to the scheme. On a side note; using a ...
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How do I suspend painting for a control and its children?

...arly useful. This is exactly what the Control base class for all of the WinForms controls already does for the BeginUpdate and EndUpdate methods. Sending the message yourself is no better than using those methods to do the heavy lifting for you, and certainly can't produce different results. ...
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Is there a performance difference between i++ and ++i in C++?

We have the question is there a performance difference between i++ and ++i in C? 17 Answers ...
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What is the HTML tabindex attribute?

...re are very few elements that are focusable by default (e.g. <a> and form controls). Developers very often add some JavaScript event handlers (like 'onclick') on not focusable elements (<div>, <span> and so on), and the way to make your interface be responsive not only to mouse eve...
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Typedef function pointer?

... Question, in your first typedef example you have of the form typedef type alias but with function pointers there only seems to be 2 arguments, typedef type. Is alias defaulted to the name specified in type argument? – dchhetri May 3 '13 at 3:...
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Set element focus in angular way

...hem use one different variable for each field they want to set focus. In a form, with a lot of fields, that implies in a lot of different variables. ...
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Find out whether radio button is checked with JQuery?

... Note: If you have several forms with groups of radio buttons using the same name, you need to make sure to check only those of the form that is submitted. One option to do this is using the find method on the form: $('#myform').submit(function(event)...
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How to get the current user in ASP.NET MVC

In a forms model, I used to get the current logged-in user by: 20 Answers 20 ...