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Can I safely delete contents of Xcode Derived data folder?

I am running low on disk space and checked through a third party utility that among other things that ~/Library/Developer/Xcode/DerivedData directory is taking about 22GB of disk space. ...
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How can I switch to a tag/branch in hg?

...n https://developer.mozilla.org/En/Developer_Guide/Source_Code/Mercurial and downloaded FF source with: 1 Answer ...
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How to get orientation-dependent height and width of the screen?

I'm trying to programmatically determine the current height and width of my application. I use this: 11 Answers ...
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How can I analyze Python code to identify problematic areas?

...e results. +1 for pylint. It is great at verifying adherence to coding standards (be it PEP8 or your own organization's variant), which can in the end help to reduce cyclomatic complexity. share | ...
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How to do error logging in CodeIgniter (PHP)

...here any security implications for this? – Aakil Fernandes Aug 12 '14 at 1:51 This dumps data to a php file whose file...
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TypeError: sequence item 0: expected string, int found

... data from a dictionary into a database. I want to iterate over the values and format them accordingly, depending on the data type. Here is a snippet of the code I am using: ...
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.NET Global exception handler in console application

Question: I want to define a global exception handler for unhandled exceptions in my console application. In asp.net, one can define one in global.asax, and in windows applications /services, one can define as below ...
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Why do we need the “event” keyword while defining events?

I don't understand why do we need the "event" keyword while defining events, when we can do the same thing without using "event" keyword, just by using the delegates. ...
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In Firebase, is there a way to get the number of children of a node without loading all the node dat

... The code snippet you gave does indeed load the entire set of data and then counts it client-side, which can be very slow for large amounts of data. Firebase doesn't currently have a way to count children without loading data, but we do plan to add it. For now, one solution would be to mai...
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Dialog throwing "Unable to add window — token null is not for an application” with getApplication()

...as it's own 'this'. In that case, you'd define "Context context" globally, and then in the onCreate, set "context = this", and then refer to "context". Hope that comes in handy too. – Steven L Sep 11 '11 at 13:04 ...