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What's the meaning of interface{}?

...e Russ's article is quite complete regarding an interface structure: type Stringer interface { String() string } Interface values are represented as a two-word pair giving a pointer to information about the type stored in the interface and a pointer to the associated data. Assigning b to...
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Detect Safari browser

... Doesn't work. Currently outputting chrome UA string on iPhone and it doesn't even have the word "chrome" in it. – Paul Carlton Jul 1 '14 at 22:59 6 ...
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decorators in the python standard lib (@deprecated specifically)

...tional "reason" message. import functools import inspect import warnings string_types = (type(b''), type(u'')) def deprecated(reason): """ This is a decorator which can be used to mark functions as deprecated. It will result in a warning being emitted when the function is used. ...
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Is there a way to make GHC provide the type class constraints of typed holes?

...for ‘it’: it = show _h • Relevant bindings include it :: String (bound at <interactive>:7:1) the type of the hole is defaulted to (). This is apparently the desired behavior, though there's an argument to be made that extended defaulting shouldn't apply to holes (as a commo...
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String.Empty versus “” [duplicate]

How is String.Empty different from "" ? 5 Answers 5 ...
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ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)

...nged.</param> public ItemPropertyChangedEventArgs(int index, string name) : base(name) { CollectionIndex = index; } /// <summary> /// Initializes a new instance of the <see cref="ItemPropertyChangedEventArgs"/> class. ///...
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iPhone Data Usage Tracking/Monitoring

... internet. #include <net/if.h> #include <ifaddrs.h> static NSString *const DataCounterKeyWWANSent = @"WWANSent"; static NSString *const DataCounterKeyWWANReceived = @"WWANReceived"; static NSString *const DataCounterKeyWiFiSent = @"WiFiSent"; static NSString *const DataCounterKeyWiFiRe...
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Android splash screen image sizes to fit all devices

...ldpi ~ 120dpi) Medium Density (mdpi ~ 160dpi) High Density (hdpi ~ 240dpi) Extra-High Density (xhdpi ~ 320dpi) (These dpi values are approximations, since custom built devices will have varying dpi values) What you (if you're a designer) need to know from this is that Android basically chooses fro...
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Can “list_display” in a Django ModelAdmin display attributes of ForeignKey fields?

... Shouldn't both be get_author, since that is what the string you're returning (and the short description) actually reference? Or change string format argument to obj.book.reviews? – Carl G Jun 20 '12 at 19:12 ...
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What is the smallest possible valid PDF?

...4-representation of a PDF. So, if anyone is interested, here is the base64-string of the 138 bytes version: JVBERi0xLjAKMSAwIG9iajw8L1BhZ2VzIDIgMCBSPj5lbmRvYmogMiAwIG9iajw8L0tpZHNbMyAw\nIFJdL0NvdW50IDE+PmVuZG9iaiAzIDAgb2JqPDwvTWVkaWFCb3hbMCAwIDMgM10+PmVuZG9iagp0\ncmFpbGVyPDwvUm9vdCAxIDAgUj4+Cg== ...