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No output to console from a WPF application?

... You'll have to create a Console window manually before you actually call any Console.Write methods. That will init the Console to work properly without changing the project type (which for WPF application won't work). Here's a complete source code example, of how a C...
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Multiple levels of 'collection.defaultdict' in Python

...ng specific that you need help with? When d[new_key] is accessed, it will call the lambda which will create a new defaultdict(int). And when d[existing_key][new_key2] is accessed, a new int will be created. – interjay Oct 11 '13 at 12:53 ...
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How do I loop through or enumerate a JavaScript object?

...uilt-in key-value pairs that have meta-information. When you loop through all the key-value pairs for an object you're looping through them too. hasOwnPropery() filters these out. – danieltalsky Jan 27 '12 at 15:56 ...
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UITextView that expands to text using auto layout

I have a view that is laid out completely using auto layout programmatically. I have a UITextView in the middle of the view with items above and below it. Everything works fine, but I want to be able to expand UITextView as text is added. This should push everything below it down as it expands. ...
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What does the “yield” keyword do?

... list, you can read its items one by one. Reading its items one by one is called iteration: >>> mylist = [1, 2, 3] >>> for i in mylist: ... print(i) 1 2 3 mylist is an iterable. When you use a list comprehension, you create a list, and so an iterable: >>> mylist = [...
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Java: Calling a super method which calls an overridden method

... The keyword super doesn't "stick". Every method call is handled individually, so even if you got to SuperClass.method1() by calling super, that doesn't influence any other method call that you might make in the future. That means there is no direct way to call SuperClass.m...
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How to iterate through two lists in parallel?

...hat advantage that only itertools.izip() had in Python 2 and thus it is usually the way to go. – Daniel S. Jun 14 '16 at 17:40 5 ...
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Can you grab or delete between parentheses in vi/vim?

...isual mode, then you specify that you want to go 2 levels of parens up. Finally the a) selects "a block". After that you can use d or x to delete, etc. If you don't want to include the outer parens, you can use "inner block" instead: v2i) See :help object-select for the complete list of related ...
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How to find out if you're using HTTPS without $_SERVER['HTTPS']

...PHP as a Fast-CGI application). Also, Apache 1.x servers (and broken installations) might not have $_SERVER['HTTPS'] defined even if connecting securely. Although not guaranteed, connections on port 443 are, by convention, likely using secure sockets, hence the additional port check. Additional n...
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How to document class attributes in Python? [closed]

...y has a specific meaning in python. What you're talking about is what we call class attributes. Since they are always acted upon through their class, I find that it makes sense to document them within the class' doc string. Something like this: class Albatross(object): """A bird with a fligh...