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Best way to implement Enums with Core Data

...to assign a type property to the entity? In other words, I have an entity called Item with an itemType property that I want to be bound to an enum, what is the best way of going about this. ...
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map vs. hash_map in C++

...tied to that key. map is implemented as a balanced binary search tree (usually a red/black tree). An unordered_map should give slightly better performance for accessing known elements of the collection, but a map will have additional useful characteristics (e.g. it is stored in sorted order, which...
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What's the proper way to install pip, virtualenv, and distribute for Python?

...estion 4314376 , I recommended using ez_setup so that you could then install pip and virtualenv as follows: 15 Answer...
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Why does Internet Explorer not send HTTP post body on Ajax call after failure?

...en a new connection. This can have a significant performance impact, especially on high latency networks. The issue is triggered easily if Ajax requests are made in rapid succession. For example, we make Ajax requests every 100ms and then the network status changes, the error is easy to reproduce. A...
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What is the most robust way to force a UIView to redraw?

...ouble with that, you're likely running into one of these issues: You're calling it before you actually have the data, or your -drawRect: is over-caching something. You're expecting the view to draw at the moment you call this method. There is intentionally no way to demand "draw right now this ver...
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how to reset

...ted in the comments obviously works, but if you look at the actual jQuery call it's pretty easy to see what jQuery is doing, just setting the value attribute to an empty string. So in "pure" JavaScript it would be: document.getElementById("uploadCaptureInputFile").value = ""; ...
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Understanding scala enumerations

...er Value representing the individual elements of the enumeration (it's actually an inner class, but the difference doesn't matter here). Thus object WeekDay inherits that type member. The line type WeekDay = Value is just a type alias. It is useful, because after you import it elsewhere with import...
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Spring Boot Remove Whitelabel Error Page

...remove white label error page, so what I've done was created a controller mapping for "/error", 15 Answers ...
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Why Does OAuth v2 Have Both Access and Refresh Tokens?

... token in order to gain an access token. Having said that, because every call to both the authorization server and the resource server is done over SSL - including the original client id and secret when they request the access/refresh tokens - I am unsure as to how the access token is any more "com...
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Android Get Current timestamp?

... From developers blog: System.currentTimeMillis() is the standard "wall" clock (time and date) expressing milliseconds since the epoch. The wall clock can be set by the user or the phone network (see setCurrentTimeMillis(long)), so the time may jump backwards or forwards unpredictably. This c...