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Class does not implement its superclass's required members

... init(coder: NSCoder) { fatalError("NSCoding not supported") } If you know you don't want to be NSCoding compliant, this is an option. I've taken this approach with a lot of my SpriteKit code, as I know I won't be loading it from a storyboard. Another option you can take which works rather we...
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How to “properly” create a custom object in JavaScript?

...ype.toString= function() { return 'Shape at '+this.x+', '+this.y; }; Now to subclass it, in as much as you can call what JavaScript does subclassing. We do that by completely replacing that weird magic prototype property: function Circle(x, y, r) { Shape.call(this, x, y); // invoke the ba...
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Can I have multiple :before pseudo-elements for the same element?

... normal element. In your example, the end result looks like this: .circle.now:before { content: "Now"; font-size: 19px; color: black; } As you can see, only the content declaration that has highest precedence (as mentioned, the one that comes last) will take effect — the rest of the...
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How do I get a string format of the current date time, in python?

...day().strftime("%B %d, %Y") 'July 23, 2010' >>> datetime.datetime.now().strftime("%I:%M%p on %B %d, %Y") '10:36AM on July 23, 2010' share | improve this answer | fo...
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git pull fails “unable to resolve reference” “unable to update local ref”

... Try cleaning-up your local repository with: $ git gc --prune=now $ git remote prune origin man git-gc(1): git-gc - Cleanup unnecessary files and optimize the local repository git gc [--aggressive] [--auto] [--quiet] [--prune=<date> | --no-prune] Runs a number of hou...
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javascript toISOString() ignores timezone offset [duplicate]

... trying to convert Twitter datetime to a local iso-string (for prettyDate) now for 2 days. I'm just not getting the local time right.. ...
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What is the difference between shallow copy, deepcopy and normal assignment operation?

...llow copy: d = copy.copy(c) print id(c) == id(d) # False - d is now a new object print id(c[0]) == id(d[0]) # True - d[0] is the same object as c[0] Using a deep copy: d = copy.deepcopy(c) print id(c) == id(d) # False - d is now a new object print id(c[0]) == id(d[0]) #...
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How much is the overhead of smart pointers compared to normal pointers in C++?

...e, and soon shared_ptrs become the default memory management technique. So now you have repeated 1-3% abstraction penalties which are taken over and over again. – Nathan Doromal Nov 27 '19 at 14:53 ...
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Should .nuget folder be added to version control?

...uGet 4.x and .NET Standard 2.0, when you use the new csproj format you can now use package references, ironically reintroducing the dependency on msbuild to restore packages, but now packages are a first class citizen of msbuild. The link above also makes mention of the PackageReference, but the fo...
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Best way to add Activity to an Android project in Eclipse?

...n Ubuntu 10.04. When the add dialog comes up, it has two selections... No, now only one "Create a new element at the top level, in Application." Ne;low that there is a text entry field and below that, a box with selections for Activity, Activity Alias, Meta Data and so on. Below that there are butto...