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How do you roll back (reset) a Git repository to a particular commit? [duplicate]

I cloned a Git repository and then tried to roll it back to a particular commit early on in the development process. Everything that was added to the repository after that point is unimportant to me so I want to omit all subsequent changes from my local source code. ...
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java.net.UnknownHostException: Invalid hostname for server: local

What are the steps I should take to solve the error: 13 Answers 13 ...
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How can I check for “undefined” in JavaScript? [duplicate]

What is the most appropriate way to test if a variable is undefined in JavaScript? 16 Answers ...
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Difference between Divide and Conquer Algo and Dynamic Programming

What is the difference between Divide and Conquer Algorithms and Dynamic Programming Algorithms? How are the two terms different? I do not understand the difference between them. ...
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Should I embed images as data/base64 in CSS or HTML

To reduce the number requests on the server I have embedded some images (PNG & SVG) as BASE64 directly into the css. (Its automated in the build process) ...
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How do I print to the debug output window in a Win32 app?

I've got a win32 project that I've loaded into Visual Studio 2005. I'd like to be able to print things to the Visual Studio output window, but I can't for the life of me work out how. I've tried 'printf' and 'cout ...
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Sqlite: CURRENT_TIMESTAMP is in GMT, not the timezone of the machine

I have a sqlite (v3) table with this column definition: 11 Answers 11 ...
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How to checkout a specific Subversion revision from the command line?

I want to checkout a specific revision of a folder in Subversion using the command line. 10 Answers ...
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How to make/get a multi size .ico file? [closed]

I simply want to have an .ico file that has multiple sizes of the icon image contained within it. I'd like it for use in a cross-platform desktop application (so that, e.g. on Windows, the 16x16 size is used for the app's top bar but a 32x32 size version is used when the various open apps are shown...
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Find a value anywhere in a database

Given a #, how do I discover in what table and column it could be found within? 18 Answers ...