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Convert to/from DateTime and Time in Ruby

How do you convert between a DateTime and a Time object in Ruby? 6 Answers 6 ...
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What is an abstract class in PHP?

...act method, which is a method without any actual code in it, just the name and the parameters, and that has been marked as "abstract". The purpose of this is to provide a kind of template to inherit from and to force the inheriting class to implement the abstract methods. An abstract class thus is...
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File tree view in Notepad++

...; Plugin Manager > Show Plugin Manager. Then select the Explorer plugin and click the Install button. share | improve this answer | follow | ...
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'npm' is not recognized as internal or external command, operable program or batch file

...vironment Variables on the System Properties. After that, reopen your command prompt and type npm This should work. share | improve this answer | follow | ...
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Rename Pandas DataFrame Index

...csv file without header, with a DateTime index. I want to rename the index and column name, but with df.rename() only the column name is renamed. Bug? I'm on version 0.12.0 ...
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What are the alternatives now that the Google web search API has been deprecated? [closed]

Google Web Search API has been deprecated and replaced with Custom Search API (see http://code.google.com/apis/websearch/ ). ...
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Java abstract interface

... | '----> nor this, are necessary. } Interfaces and their methods are implicitly abstract and adding that modifier makes no difference. Is there other rules that applies with an abstract interface? No, same rules apply. The method must be implemented by any (concrete...
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How do I detect that an iOS app is running on a jailbroken phone?

...reak. In the simple case, you should be able to see if Cydia is installed and go by that - something like NSString *filePath = @"/Applications/Cydia.app"; if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]) { // do something useful } For hacked kernels, it's a little (lot) more in...
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MySQL Cannot Add Foreign Key Constraint

...ing to add Foreign Key constraints to my database as a project requirement and it worked the first time or two on different tables, but I have two tables on which I get an error when trying to add the Foreign Key Constraints. The error message that I get is: ...
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JavaScript string newline character?

...); <textarea id="test" name="test"> </textarea> IE8 and Opera 9 on Windows use \r\n. All the other browsers I tested (Safari 4 and Firefox 3.5 on Windows, and Firefox 3.0 on Linux) use \n. They can all handle \n just fine when setting the value, though IE and Opera will conver...