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How do I hide an element when printing a web page?

... answer is not complete. You have to have two media sections. @media print and @media screen. In the print section, you place your styles for printing. In the screen screen section, you place your styles for screen printing. You can even have multiple screen sections for different resolutions. Basic...
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Do I need to convert .CER to .CRT for Apache SSL certificates? If so, how?

... File extensions for cryptographic certificates aren't really as standardized as you'd expect. Windows by default treats double-clicking a .crt file as a request to import the certificate into the Windows Root Certificate store, but treats a .cer file as a request just to view the certificat...
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Why are Python lambdas useful? [closed]

...se elements of the original list that are multiples of 3. This is shorter (and, one could argue, clearer) than def filterfunc(x): return x % 3 == 0 mult3 = filter(filterfunc, [1, 2, 3, 4, 5, 6, 7, 8, 9]) Of course, in this particular case, you could do the same thing as a list comprehension: ...
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Any way to properly pretty-print ordered dictionaries?

I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window. ...
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What are all the uses of an underscore in Scala?

I've taken a look at the list of surveys taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated. ...
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WPF ToolBar: how to remove grip and overflow

In a nested WPF ToolBarPanel-ToolBar-Menu we want to get rid of the grip handle to the left and the overflow area to the right. they are both grayed out, but we'd like them to not be displayed at all. ...
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Does Android support near real time push notification?

...M. It inherits GCM’s core infrastructure to deliver messages reliably on Android, iOS and Chrome. However they'll continue to support GCM because lot of developers are using GCM SDKs today to handle notifications, and client app upgrade takes time. As of June 26, 2012, Google Cloud Messaging is t...
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How to remove items from a list while iterating?

I'm iterating over a list of tuples in Python, and am attempting to remove them if they meet certain criteria. 26 Answers ...
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How to Create Deterministic Guids

...h) is that these are guaranteed not to collide with non-named-based UUIDs, and have a very (very) small possibility of collision with other name-based UUIDs. There's no native support in the .NET Framework for creating these, but I posted code on GitHub that implements the algorithm. It can be used...
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SQL statement to get column type

... FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'yourTableName' AND COLUMN_NAME = 'yourColumnName' share | improve this answer | follow | ...