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What is the difference between static func and class func in Swift?

... Is it simply that static is for static functions of structs and enums, and class for classes and protocols? That's the main difference. Some other differences are that class functions are dynamically dispatched and can be overridden by subclasses. Protocols use the class keyword, b...
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Why use symbols as hash keys in Ruby?

... basically "immutable strings" .. that means that they can not be changed, and it implies that the same symbol when referenced many times throughout your source code, is always stored as the same entity, e.g. has the same object id. Strings on the other hand are mutable, they can be changed anytim...
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How do I include a file over 2 directories back?

... @Brian Well, that’s nonsense, you’re comparing apples and oranges. You’re right that a define would be used here but (1) that wasn’t even remotely the question here. And (2) you’d still use a relative path in your define, Unless you actually hard-code the whole absolute se...
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What is the most appropriate way to store user settings in Android application

...eating an application which connects to the server using username/password and I would like to enable the option "Save password" so the user wouldn't have to type the password each time the application starts. ...
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ASP.NET_SessionId + OWIN Cookies do not send to browser

... I have encountered the same problem and traced the cause to OWIN ASP.NET hosting implementation. I would say it's a bug. Some background My findings are based on these assembly versions: Microsoft.Owin, Version=2.0.2.0, Culture=neutral, PublicKeyToken=31bf3...
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Co-variant array conversion from x to y may cause run-time exception

...kLabel s ( IList<LinkLabel> ). I later add LinkLabel s to this list and add those labels to a FlowLayoutPanel like follows: ...
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How to get milliseconds from LocalDateTime in Java 8

...r, maybe you already have a LocalDateTime or similar object from somewhere and you want to convert it to milliseconds since the epoch. It's not possible to do that directly, since the LocalDateTime family of objects has no notion of what time zone they're in. Thus time zone information needs to be s...
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Alternative to itoa() for converting integer to string C++? [duplicate]

...integer to a string because when I run it in visual Studio I get warnings, and when I try to build my program under Linux, I get a compilation error. ...
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Member initialization while using delegated constructor

I've started trying out the C++11 standard and i found this question which describes how to call your ctor from another ctor in the same class to avoid having a init method or the like. Now i'm trying the same thing with code that looks like this: ...
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Does IMDB provide an API? [closed]

... The IMDb has a public API that, although undocumented, is fast and reliable (used on the official website through AJAX). Search Suggestions API https://sg.media-imdb.com/suggests/a/aa.json https://v2.sg.media-imdb.com/suggests/h/hello.json (alternate) Format: JSON-P Caveat: It's in JS...