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Why '&&' and not '&'?
...us value is not null. If you would use the bitwise AND operator & instead, you would get a NullReferenceException if the key is not found in the dictionary, because the second part of the expression is executed in any case.
A similar but simpler example of this is the following code (as mention...
Split List into Sublists with LINQ
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Mykola
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answered Jan 7 '09 at 3:05
JaredParJaredPar
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Why can't we have static method in a (non-static) inner class?
... Bill the LizardBill the Lizard
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Selecting and manipulating CSS pseudo-elements such as ::before and ::after using jQuery
...>foo</span>
In jQuery:
$('span').hover(function(){
$(this).addClass('change').attr('data-content','bar');
});
In CSS:
span.change:after {
content: attr(data-content) ' any other text you may want';
}
...
Looking for a clear definition of what a “tokenizer”, “parser” and...
... Roger LipscombeRoger Lipscombe
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How to solve error “Missing `secret_key_base` for 'production' environment” (Rails 4.1)
...
I had the same problem and solved it by creating an environment variable to be loaded every time I logged in to the production server, and made a mini-guide of the steps to configure it:
I was using Rails 4.1 with Unicorn v4.8....
Why should C++ programmers minimize use of 'new'?
...It is very, very fast because it requires minimal bookkeeping and the next address to allocate is implicit.
In C++, this is called automatic storage because the storage is claimed automatically at the end of scope. As soon as execution of current code block (delimited using {}) is completed, memory...
Transactions in REST?
...et is conceptually your transaction wrapper. In the same way that you can add multiple items to a shopping basket and then submit that basket to process the order, you can add Bob's account entry to the transaction wrapper and then Bill's account entry to the wrapper. When all the pieces are in ...
Is it possible to change icons in Visual Studio 2012?
...Studio 2012. The managed resources are a lot more complex and haven't been added in yet, though I have gotten some to work.
The initial release didn't work well with themes that had a dark Tree View background color due to how the icon colors are inverted when a dark background color is detected. T...
Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
...t argument on the evaluation stack is a null reference (the one that was loaded using ldloc.0).
If .NET should be able to tell that it was s that was a null reference it should in some way track that the first argument on the evaluation stack originated form s. In this case it is easy for us to see...