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Wrap a delegate in an IEqualityComparer
...t;T> : IEqualityComparer<T>
{
readonly Func<T, T, bool> _comparer;
readonly Func<T, int> _hash;
public FuncEqualityComparer( Func<T, T, bool> comparer )
: this( comparer, t => 0 ) // NB Cannot assume anything about how e.g., t.GetHashCode() interact...
Passing Data between View Controllers
...A)
// in ContollerA.m
- (void)viewDidLoad {
[super viewDidLoad];
__unsafe_unretained typeof(self) weakSelf = self;
self.selectedVoucherBlock = ^(NSString *voucher) {
weakSelf->someLabel.text = voucher;
};
}
Go to Controller B
UIStoryboard *storyboard = [UIStoryboard s...
How does one create an InputStream from a String? [duplicate]
...hod above.
After JDK 7+ you can use
java.nio.charset.StandardCharsets.UTF_16
instead of hardcoded encoding string:
InputStream is = new ByteArrayInputStream(StandardCharsets.UTF_16.encode(myString).array());
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Can dplyr package be used for conditional mutating?
... ifelse(a == 0 | a == 1 | a == 4 | a == 3 | c == 4, 3, NA)))
Added - if_else: Note that in dplyr 0.5 there is an if_else function defined so an alternative would be to replace ifelse with if_else; however, note that since if_else is stricter than ifelse (both legs of the condition must have the ...
How does one generate a random number in Apple's Swift language?
...swered Jun 3 '14 at 4:32
Catfish_ManCatfish_Man
38.6k1111 gold badges6363 silver badges8181 bronze badges
...
NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
... those conditions and change the app flow:
public static boolean isSamsung_4_2_2() {
String deviceMan = Build.MANUFACTURER;
String deviceRel = Build.VERSION.RELEASE;
return "samsung".equalsIgnoreCase(deviceMan) && deviceRel.startsWith("4.2.2");
}
Then in the activity's onCreat...
Ruby on Rails: Delete multiple hash keys
...port adds to Hash.
It would allow your code to be simplified to:
redirect_to my_path(params.except(:controller, :action, :other_key))
Also, you wouldn't have to monkey patch, since the Rails team did it for you!
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Accessing a Dictionary.Keys Key through a numeric index
...t;K, T> : IDictionary<K, T>
{
private IDictionary<K, T> _InnerDictionary;
public K LastInsertedKey { get; set; }
public MyDictionary()
{
_InnerDictionary = new Dictionary<K, T>();
}
#region Implementation of IDictionary
public void Add(Key...
Make sure only a single instance of a program is running
...bugs here.
You can install tend using one of the following methods:
easy_install tendo
pip install tendo
manually by getting it from http://pypi.python.org/pypi/tendo
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Routes with Dash `-` Instead of Underscore `_` in Ruby on Rails
I want my urls to use dash - instead of underscore _ as word separators. For example controller/my-action instead of controller/my_action .
...