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Unstaged changes left after git reset --hard

After git reset --hard , git status gives me files within the Changes not staged for commit: section. 21 Answers ...
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iPhone: Detecting user inactivity/idle time since last screen touch

Has anybody implemented a feature where if the user has not touched the screen for a certain time period, you take a certain action? I'm trying to figure out the best way to do that. ...
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Effects of the extern keyword on C functions

In C, I did not notice any effect of the extern keyword used before function declaration. At first, I thought that when defining extern int f(); in a single file forces you to implement it outside of the file's scope. However I found out that both: ...
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How can I measure the speed of code written in PHP? [closed]

How can I say which class of many (which all do the same job) execute faster? is there a software to measure that? 10 Answe...
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How do I get the AM/PM value from a DateTime?

The code in question is below: 13 Answers 13 ...
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How to remove trailing whitespaces with sed?

I have a simple shell script that removes trailing whitespace from a file. Is there any way to make this script more compact (without creating a temporary file)? ...
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How do you use “

I just finished reading about scoping in the R intro , and am very curious about the <<- assignment. 6 Answers ...
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Traverse all the Nodes of a JSON Object Tree with JavaScript

I'd like to traverse a JSON object tree, but cannot find any library for that. It doesn't seem difficult but it feels like reinventing the wheel. ...
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How do I update pip itself from inside my virtual environment?

I'm able to update pip-managed packages, but how do I update pip itself? According to pip --version , I currently have pip 1.1 installed in my virtualenv and I want to update to the latest version. ...
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Python in Xcode 4+?

How does one create a Python friendly environment in Xcode 4, 5, 6 or 7? 8 Answers 8 ...