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When should I mock?
I have a basic understanding of mock and fake objects, but I'm not sure I have a feeling about when/where to use mocking - especially as it would apply to this scenario here .
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serve current directory from command line
could someone give me a hint, howto serve the current directory from command line with ruby? it would be great, if i can have some system wide configuration (e.g. mime-types) and simply launch it from every directory.
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How to drop multiple columns in postgresql
I want to drop 200 columns in my table in PostgreSQL. I tried:
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Create JSON-object the correct way
I am trying to create an JSON object out of a PHP array. The array looks like this:
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What is the difference between Collections.emptyList() and Collections.EMPTY_LIST
In Java, we have Collections.emptyList() and Collections.EMPTY_LIST . Both have the same property:
4 Answers
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How can I find out if I have Xcode commandline tools installed?
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Override devise registrations controller
I have added a field to the sign-up form that is based on a different model, see How do I use nested attributes with the devise model for the gory details. This part is working fine.
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Scroll to the top of the page using JavaScript?
How do I scroll to the top of the page using a JavaScript? It is desirable even if the scrollbar instantly jumps to the top. I'm not looking for a smooth scrolling.
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Difference between dispatch_async and dispatch_sync on serial queue?
I've created a serial queue like this:
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How to draw a line in android
Can anybody tell how to draw a line in Android, perhaps with an example?
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