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How to set enum to null

... You can either use the "?" operator for a nullable type. public Color? myColor = null; Or use the standard practice for enums that cannot be null by having the FIRST value in the enum (aka 0) be the default value. For example in a ...
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Authenticate with GitHub using a token

I am trying to authenticate with GitHub using a personal access token. In the help files at github, it states to use the cURL method to authenticate ( https://help.github.com/articles/creating-an-access-token-for-command-line-use ). I have tried this, but I still cannot push to GitHub. Please note, ...
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Where does gcc look for C and C++ header files?

...print-prog-name=cc1plus` -v This command asks gcc which C++ preprocessor it is using, and then asks that preprocessor where it looks for includes. You will get a reliable answer for your specific setup. Likewise, for the C preprocessor: `gcc -print-prog-name=cpp` -v ...
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How to quietly remove a directory with content in PowerShell

Using PowerShell, is it possible to remove some directory that contains files without prompting to confirm action? 13 Answe...
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How to autosize a textarea using Prototype?

... Facebook does it, when you write on people's walls, but only resizes vertically. Horizontal resize strikes me as being a mess, due to word-wrap, long lines, and so on, but vertical resize seems to be pretty safe and nice. None of the Fac...
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How do I programmatically change file permissions?

...r file attributes is available in Java 7, as part of the "new" New IO facility (NIO.2). For example, POSIX permissions can be set on an existing file with setPosixFilePermissions(), or atomically at file creation with methods like createFile() or newByteChannel(). You can create a set of permission...
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UITableView : viewForHeaderInSection: not called during reloadData:

I've set up the tableview with correct delegate and datasource linkages.. the reloadData method calls the datasource and the delegate methods except for viewForHeaderInSection: . ...
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Android Studio marks R in red with error message “cannot resolve symbol R”, but build succeeds

...I've tried to create in Android Studio, all usages of R are marked in red with the error message "cannot resolve symbol R", but the compilation succeeds and the application runs. This is really annoying, as it blocks auto-completion and shows huge red waved lines all over my code. ...
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Django Server Error: port is already in use

...ype sudo fuser -k 8000/tcp. This should kill all the processes associated with port 8000. EDIT: For osx users you can use sudo lsof -t -i tcp:8000 | xargs kill -9 share | improve this answer ...
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What is normalized UTF-8 all about?

...rary ) contains the classes needed to help normalize UTF-8 strings to make it easier to compare values when searching. 7 An...