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_=> what does this underscore mean in Lambda expressions?
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It is a parameter name, albeit not a useful one, but it's the one typically used (by some conventions) when you need to specify that the expression has a parameter in order to get the code to compile, but you don't really care about it, so you're just going to ignore i...
Is there an IDictionary implementation that, on missing key, returns the default value instead of th
... decided this was good enough to add to System.Collections.Generic.CollectionExtensions, as I just tried and it's there.
– theMayer
Feb 21 '19 at 19:43
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What is the recommended way to delete a large number of items from DynamoDB?
...n this API and the former only targets the Attribute value of the hash component of the composite primary key..
Please note that you''ll have to deal with the query API paging here as usual, see the ExclusiveStartKey parameter:
Primary key of the item from which to continue an earlier query. A...
When to use -retainCount?
...don't use -retainCount. It's a truly worthless method.
edit
Please everyone go to http://bugreport.apple.com and request that -retainCount be deprecated. The more people that ask for it, the better.
edit #2
As an update,[NSNumber numberWithInt:1] now has a retainCount of 9223372036854775807. ...
Adding multiple columns AFTER a specific column in MySQL
...d by commas. This is a MySQL extension to standard SQL, which permits only one of each clause per ALTER TABLE statement.
– informatik01
May 1 '19 at 13:21
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How do I abort/cancel TPL Tasks?
... example! It is a simple boolean condition, of course it is the first what one would try! But i.e. I have a function in a separate Task, which may take much time to be ended, and ideally it shouldn't know anything about a threading or whatever. So how do I cancel the function with your advice?
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No Main() in WPF?
I am a beginner when it comes to programming but I was sure that one of the universal rules was that a program starts with Main(). I do not see one when I create a WPF project. Is Main() simply named something differently in WPF?
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ASP.NET MVC Html.DropDownList SelectedValue
... What the hell! This is not fixed in MVC5??? As another trick mentioned by @Paul Hatcher , copy the selected id into the ViewData["DealerTypes"].
– jsgoupil
Oct 1 '14 at 21:25
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Repository Pattern vs DAL
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You're definitely not the one who confuses things. :-)
I think the answer to the question depends on how much of a purist you want to be.
If you want a strict DDD point of view, that will take you down one path. If you look at the repository as a p...
How to remove from a map while iterating it?
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@skyhisi: Indeed. This is one of the legitimate uses of the post-increment: First increment it to get the next, valid iterator, and then erase the old one. It doesn't work the other way round!
– Kerrek SB
Nov 22 ...