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How do I revert my changes to a git submodule?
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Move into the submodule's directory, then do a git reset --hard to reset all modified files to their last committed state. Be aware that this will discard all non-committed changes.
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Selecting only numeric columns from a data frame
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EDIT: updated to avoid use of ill-advised sapply.
Since a data frame is a list we can use the list-apply functions:
nums <- unlist(lapply(x, is.numeric))
Then standard subsetting
x[ , nums]
## don't use sapply, even though it's less code
## nums <- sapply(x, is....
Foreach loop, determine which is the last iteration of the loop
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If you just need to do something with the last element (as opposed to something different with the last element then using LINQ will help here:
Item last = Model.Results.Last();
// do something with last
If you need to do something different with the ...
How to make ReSharper re-evaluate its assembly reference highlighting
I am creating a Prism Project Template, and the template works great. But after I create a project with the template some of the files look like this:
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Rotating videos with FFmpeg
I have been trying to figure out how to rotate videos with FFmpeg. I am working with iPhone videos taken in portrait mode. I know how to determine the current degrees of rotation using MediaInfo (excellent library, btw) but I'm stuck on FFmpeg now.
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Notepad++ Setting for Disabling Auto-open Previous Files
... you need to uncheck "Remember the current session for next launch" on Settings -> Preferences -> Backup.
For older versions you need to uncheck "Remember the current session for next launch"
on Settings -> Preferences.
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partial string formatting
Is it possible to do partial string formatting with the advanced string formatting methods, similar to the string template safe_substitute() function?
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How do I ignore an error on 'git pull' about my local changes would be overwritten by merge?
How do I ignore the following error message on Git pull?
34 Answers
34
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Get the subdomain from a URL
Getting the subdomain from a URL sounds easy at first.
16 Answers
16
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How to send SMS in Java
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(Disclaimer: I work at Twilio)
Twilio offers a Java SDK for sending SMS via the Twilio REST API.
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