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What happens with constraints when a view is removed

...hen I do something like this, I save the constraints like this for a view called view1: self.portraitConstraints = [NSMutableArray new]; for (NSLayoutConstraint *con in self.view.constraints) { if (con.firstItem == self.view1 || con.secondItem == self.view1) { [self.portraitConstraints a...
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What's the role of GetHashCode in the IEqualityComparer in .NET?

...bjects - so the hash code is not necessarily unique. A dictionary is a really cool data structure that trades a higher memory footprint in return for (more or less) constant costs for Add/Remove/Get operations. It is a poor choice for iterating over though. Internally, a dictionary contains an arr...
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What's the false operator in C# good for?

...rride |, &, true and false in exactly the right way the compiler will call | and & when you write || and &&. For example, look at this code (from http://ayende.com/blog/1574/nhibernate-criteria-api-operator-overloading - where I found out about this trick; archived version by @Biggs...
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background-size in shorthand background property (CSS3)

...you have in your question or my Code example. It's just not implemented in all browsers yet. – Kraz Oct 23 '11 at 6:37 ...
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Check if array is empty or null

... As long as your selector is actually working, I see nothing wrong with your code that checks the length of the array. That should do what you want. There are a lot of ways to clean up your code to be simpler and more readable. Here's a cleaned up version...
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Add a number to each selection in Sublime Text 2, incremented once per selection

...nd that I had to first select the lines and use Ctrl + Shift + L to select all affected lines, then use Text Pastry for numbering, youtube.com/watch?v=upEieoTwnjs – Manish Jul 4 '15 at 13:04 ...
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Cannot pass null argument when using type hinting

...nswered Jan 29 '13 at 13:34 DonCallistoDonCallisto 26k77 gold badges6161 silver badges8484 bronze badges ...
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Convert Pandas column containing NaNs to dtype `int`

... @jsc123 you can use the object dtype. This comes with a small health warning but for the most part works well. – Andy Hayden May 19 '15 at 15:16 1 ...
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How to initialize all the elements of an array to any specific value in java

...t() function which can fulfill my wish but in Java how can i initialize all the elements to a specific value? Whenever we write int[] array=new int[10]; , this simply initialize an array of size 10 having all elements equal to zero. I just want to change this initialization integer for one of m...
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How to randomize (shuffle) a JavaScript array?

... is superfluous since if i == 0 the while loop will never be entered. The call to Math.floor can be done faster using ...| 0. Either tempi or tempj can be removed and the value be directly assigned to myArray[i] or j as appropriate. – RobG Jun 8 '11 at 7:21 ...