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How to use UIVisualEffectView to Blur Image?

Could someone give a small example of applying the blur to an image? I've been trying to figure out the code for a while now :( still new at obj c! ...
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Should I use a data.frame or a matrix?

...ables) can be expected to be of different types (numeric/character/logical etc.). Matrices are for data of the same type. Consequently, the choice matrix/data.frame is only problematic if you have data of the same type. The answer depends on what you are going to do with the data in data.frame/ma...
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Declaring variables inside loops, good practice or bad practice?

...ler to decide, based on what's best for the platform, optimization levels, etc. An ordinary int/float inside a loop will usually be placed on the stack. A compiler can certainly move that outside of the loop and reuse the storage if there is an optimization in doing that. For practical purposes, thi...
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How can I select all children of an element except the last child?

...the problem is when you have many css style like (border, color, font-size etc.) you will need to initialize the css style again to the :last-child. So the suitable solution is using :not(:last-child) – davecar21 Feb 5 '18 at 11:52 ...
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Command-line Tool to find Java Heap Size and Memory Used (Linux)?

...tion which options of jstat one should use in order to verify just the overall memory usage of a JVM? Let's say you start the JVM with Xms=4g and Xmx=4g and you want to see, how much memory of that is already used? – basZero Feb 5 '14 at 9:44 ...
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C-like structures in Python

...uct(NamedTuple): foo: str bar: int baz: list qux: User my_item = MyStruct('foo', 0, ['baz'], User('peter')) print(my_item) # MyStruct(foo='foo', bar=0, baz=['baz'], qux=User(name='peter')) share ...
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Anonymous recursive PHP functions

... pass it by reference. Be aware, that if you modify the $factorial before calling the function, the result will change as it's passed by reference. – Marius Balčytis Sep 13 '12 at 21:48 ...
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When should I use ugettext_lazy?

I have a question about using ugettext and ugettext_lazy for translations. I learned that in models I should use ugettext_lazy , while in views ugettext. But are there any other places, where I should use ugettext_lazy too? What about form definitions? Are there any performance diffrences betwe...
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How do I inspect the view hierarchy in iOS?

... I've got: error: cannot find interface declaration for '$__lldb_objc_class' any ideas? (lldb) po [[UIWindow keyWindow] recursiveDescription] error: cannot find interface declaration for '$__lldb_objc_class' error: cannot find interface declaration for '$__lldb_objc_class' error:...
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SQL Server Escape an Underscore

...IKE keyword and the [ ] wildcard characters. For your case: ... LIKE '%[_]d' share | improve this answer | follow | ...