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“git rm --cached x” vs “git reset head --​ x”?

...ere a file, say, can be - the tree, the index and the working copy. When you just add a file to a folder, you are adding it to the working copy. When you do something like git add file you add it to the index. And when you commit it, you add it to the tree as well. It will probably help you to kno...
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Returning value from called function in a shell script

I want to return the value from a function called in a shell script. Perhaps I am missing the syntax. I tried using the global variables. But that is also not working. The code is: ...
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git switch branch without discarding local changes

Alright, lets say one day we make happen to make a bunch of modifications and when we go to commit them we notice we were working on the wrong branch. ...
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error: passing xxx as 'this' argument of xxx discards qualifiers

... The objects in the std::set are stored as const StudentT. So when you try to call getId() with the const object the compiler detects a problem, mainly you're calling a non-const member function on const object which is not allowed because non-const member functions make NO ...
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How do I validate a date string format in python?

I have a python method which accepts a date input as a string . 5 Answers 5 ...
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Why is Maven downloading the maven-metadata.xml every time?

Below is the error I usually get when my internet connection is flanky when trying to build a web application with maven. ...
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How can I set the Secure flag on an ASP.NET Session Cookie?

How can I set the Secure flag on an ASP.NET Session Cookie, so that it will only be transmitted over HTTPS and never over plain HTTP? ...
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How to perform Callbacks in Objective-C

How to perform call back functions in Objective-C? 5 Answers 5 ...
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How do I change the background color of a plot made with ggplot2

By default, ggplot2 produces plots with a grey background. How do I change the color of the background of the plot? 3 Answ...
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When to use window.opener / window.parent / window.top

In JavaScript when to use window.opener / window.parent / window.top ? 4 Answers ...