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How do I detect if software keyboard is visible on Android Device or not?
Is there a way in Android to detect if the software (a.k.a. "soft") keyboard is visible on screen?
30 Answers
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What are OLTP and OLAP. What is the difference between them?
...ean? All articles I find about them don't give me an idea, or my knowledge is too insufficient to understand it.
5 Answers
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How do I make a placeholder for a 'select' box?
I'm using placeholders for text inputs which is working out just fine. But I'd like to use a placeholder for my selectboxes as well. Of course I can just use this code:
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What's the difference between utf8_general_ci and utf8_unicode_ci?
...re both for the UTF-8 character encoding. The differences are in how text is sorted and compared.
Note: In MySQL you have to use utf8mb4 rather than utf8. Confusingly, utf8 is a flawed UTF-8 implementation from early MySQL versions which remains only for backward compatibility. The fixed version wa...
How to check whether a pandas DataFrame is empty?
How to check whether a pandas DataFrame is empty? In my case I want to print some message in terminal if the DataFrame is empty.
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Detect the Internet connection is offline?
How to detect the Internet connection is offline in JavaScript?
18 Answers
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What is the difference between the bridge pattern and the strategy pattern?
...tics. From wikipedia:
The UML class diagram for the Strategy
pattern is the same as the diagram for
the Bridge pattern. However, these two
design patterns aren't the same in
their intent. While the Strategy
pattern is meant for behavior, the
Bridge pattern is meant for structure.
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PHP ORMs: Doctrine vs. Propel
I'm starting a new project with symfony which is readily integrated with Doctrine and Propel , but I of course need to make a choice.... I was wondering if more experienced people out there have general pros and/or cons for going with either of these two?
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What should my Objective-C singleton look like? [closed]
My singleton accessor method is usually some variant of:
26 Answers
26
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