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Which is preferred: Nullable.HasValue or Nullable != null?
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The compiler replaces null comparisons with a call to HasValue, so there is no real difference. Just do whichever is more readable/makes more sense to you and your colleagues.
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Converting VS2012 Solution to VS2010
...t an app.config files that have references to .NET 4.5 in a similar way to allow them to run on a .NET 4.0 environment.
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Can I exclude some concrete urls from inside ?
I want some concrete filter to be applied for all urls except for one concrete (i.e. for /* except for /specialpath ).
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Why is volatile not considered useful in multithreaded C or C++ programming?
...roblem with volatile in a multithreaded context is that it doesn't provide all the guarantees we need. It does have a few properties we need, but not all of them, so we can't rely on volatile alone.
However, the primitives we'd have to use for the remaining properties also provide the ones that vol...
How to keep one variable constant with other one changing with row in excel
...ing the formula into new cells.
Since you are dragging across rows, you really only need to freeze the row part:
=(B0+4)/A$0
Keyboard Shortcuts
Commenters helpfully pointed out that you can toggle relative addressing for a formula in the currently selected cells with these keyboard shortcuts:...
How to combine class and ID in CSS selector?
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There are differences between #header .callout and #header.callout in css.
Here is the "plain English" of #header .callout:
Select all elements with the class name callout that are descendants of the element with an ID of header.
And #header.callout means:
Select...
Java - removing first character of a string
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Its important to note that this doesn't actually remove the character from the string -- it gives you a new string that has all the characters of the old string except the first one. There's no way to actually modify a string.
– Chris Dodd
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How to get first and last day of the week in JavaScript
...tring(); just I have corrected the @RichardN's code, which is having a small mistake
– Azeez
Oct 13 '14 at 14:20
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What is the difference between null and undefined in JavaScript?
...he typeof operator returns 'object' for a value that is null. This was actually an error in the original JavaScript implementation that was then copied in ECMAScript. Today, it is rationalized that null is considered a placeholder for an object, even though, technically, it is a primitive value."
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Is Meyers' implementation of the Singleton pattern thread safe?
...rently while the variable is being initialized, the concurrent execution shall wait for completion of the initialization.
GCC and VS support for the feature (Dynamic Initialization and Destruction with Concurrency, also known as Magic Statics on MSDN) is as follows:
Visual Studio: supported sinc...