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Why must a lambda expression be cast when supplied as a plain Delegate parameter

...her be converted to a delegate type or an expression tree - but it has to know which delegate type. Just knowing the signature isn't enough. For instance, suppose I have: public delegate void Action1(); public delegate void Action2(); ... Delegate x = () => Console.WriteLine("hi"); What woul...
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

...s (also rows). In other words, Car → Wheel is a 1-to-many relationship. Now, let's say you need to iterate through all the cars, and for each one, print out a list of the wheels. The naive O/R implementation would do the following: SELECT * FROM Cars; And then for each Car: SELECT * FROM Wheel W...
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When is it better to use String.Format vs string concatenation?

... I know I know. It was made in jest (have read the link btw before, which was a good read) – nawfal May 12 '13 at 11:24 ...
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Format LocalDateTime with Timezone in Java8

...= DateTimeFormatter.ofPattern("yyyyMMdd HH:mm:ss.SSSSSS Z"); ZonedDateTime.now().format(FORMATTER); => "20140829 14:12:22.122000 +09" share | improve this answer | follow...
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What is the list of possible values for navigator.platform as of today? [closed]

I know that this changes quite often, but is there a list as exhaustive as possible out there of the possible values returned by navigator.platform ? ...
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how to implement a pop up dialog box in iOS

...isplay a pop up or alert box conveying a message to the user. Does anyone know where I can find more information about this? ...
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What does iterator->second mean?

... I'm sure you know that a std::vector<X> stores a whole bunch of X objects, right? But if you have a std::map<X, Y>, what it actually stores is a whole bunch of std::pair<const X, Y>s. That's exactly what a map is - it pai...
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How to use Git for Unity3D source control?

...for Git called Git LFS that directly deals with the below problem. You can now easily and efficiently version large binary files! Git can work fine with 3D games out of the box. However the main caveat here is that versioning large (>5 MB) media files can be a problem over the long term as your...
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Intellij IDEA: Hotkey for “scroll from source”

... There is a plugin for this now. See new answer. – mmm Nov 6 '15 at 12:15 ...
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jQuery append() vs appendChild()

... Do you know why append is "safe" and appendChild is not? What does domManip do? – Rob Fox Mar 17 '14 at 8:29 2 ...