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vs in Generics
... variance in generic interfaces was added to C# and VB.NET (in .NET 4 with VS 2010), this was a compile time error.
After .NET 4, IEnumerable<T> was marked covariant, and became IEnumerable<out T>. Since IEnumerable<out T> only uses the elements within it, and never adds/changes ...
background:none vs background:transparent what is the difference?
... No, there's no difference between them.
But!.. if you say background:none Vs background:red then yes... there's a big diference, as I say, the first would set all properties to none/default and the second one, will only change the color and remains the rest in his default state.
So in brief:
Short ...
“Automatic” vs “Automatic (Delayed start)”
...ogin', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f11015189%2fautomatic-vs-automatic-delayed-start%23new-answer', 'question_page');
}
);
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How to convert string into float in JavaScript?
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Have you ever tried to do this? :p
var str = '3.8';ie
alert( +(str) + 0.2 );
+(string) will cast string into float.
Handy!
So in order to solve your problem, you can do something like this:
var floatValue = +(str.replace(/,/,'.'));
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Visual Studio: Is there a way to collapse all items of Solution Explorer?
... I tryed to use it, but after it was installed on my machine, my vs2008 stopped to work. LOL
– Cleiton
Aug 31 '09 at 14:53
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jQuery post() with serialize and extra data
...oes. I'm not sure what you are trying to show with your demo. You are just alerting the length of the array. If my demo doesn't convince you, please have a look at the documentation.
– Felix Kling
Nov 19 '14 at 18:56
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Coarse-grained vs fine-grained
What is the difference between coarse-grained and fine-grained?
11 Answers
11
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delete_all vs destroy_all?
...-> delete_all
According to this post : Rails :dependent => :destroy VS :dependent => :delete_all
destroy / destroy_all: The associated objects are destroyed alongside this object by calling their destroy method
delete / delete_all: All associated objects are destroyed immediately without...
Rails :include vs. :joins
...ready for use.
Great example:
http://railscasts.com/episodes/181-include-vs-joins
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Java array reflection: isArray vs. instanceof
Is there a preference or behavior difference between using:
8 Answers
8
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