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How can I rollback a github repository to a specific commit?
...0 commits in it right now. I need to rollback the repository to commit 80, and remove all the subsequent ones.
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Show filename and line number in grep output
... to search my rails directory using grep. I am looking for a specific word and I want to grep to print out the file name and line number.
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Why is a “GRANT USAGE” created the first time I grant a user privileges?
I'm new to the admin side of DBMS and was setting up a new database tonight (using MySQL) when I noticed this. After granting a user a privilege for the first time, another grant is created that looks like
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Difference between GeoJSON and TopoJSON
What is the difference between GeoJSON and TopoJSON and when would I use one over the other?
3 Answers
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Maven: Command to update repository after adding dependency to POM
...compile to download compile time dependencies or mvn test for compile time and test dependencies but I prefer something that always works.
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Difference between application/x-javascript and text/javascript content types
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text/javascript is obsolete, and application/x-javascript was experimental (hence the x- prefix) for a transitional period until application/javascript could be standardised.
You should use application/javascript. This is documented in the RFC.
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Using app.configure in express
I found some code where they set up Express without using app.configure and I was wondering, what's the difference between using app.configure without an environment specifier and not using it?
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Nohup is not writing log to output file
I am using the following command to run a python script in the background:
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Callback when CSS3 transition finishes
I'd like to fade out an element (transitioning its opacity to 0) and then when finished remove the element from the DOM.
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Ruby on Rails Callback, what is difference between :before_save and :before_create?
Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ?
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