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Do spurious wakeups in Java actually happen?
...hread_cond_wait() function in Linux is implemented using the futex system call. Each blocking system call on Linux returns abruptly with EINTR when the process receives a signal. ... pthread_cond_wait() can't restart the waiting because it may miss a real wakeup in the little time it was outside the...
What exactly does git rebase --skip do?
...lready existed upstream, Git will not be able to apply your commit (but usually should skip it automatically, if the patch is exactly the same). Your own commit will be skipped, but the change will still exist in current HEAD, because it was already applied upstream.
You should really make sure you...
svn: replace trunk with branch
... try it? IIRC, SVN shows that the files were deleted and readded but internally, it will know that the files have been moved.
– Aaron Digulla
Sep 27 '10 at 7:12
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Creating an R dataframe row-by-row
...ke to construct a dataframe row-by-row in R. I've done some searching, and all I came up with is the suggestion to create an empty list, keep a list index scalar, then each time add to the list a single-row dataframe and advance the list index by one. Finally, do.call(rbind,) on the list.
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REST API Token-based Authentication
...e over HTTP, I reasoned that we would dispense tokens to avoid repeatedly calling the authentication service. Which brings me neatly to my first question:
...
How do I add spacing between columns in Bootstrap?
I'm sure there is a simple solution to this problem. Basically, if I have two columns how can I add a space between them?
2...
How do you share constants in NodeJS modules?
...mply need to require the file, and not even save your return value.
But really, you shouldn't do that. Keeping things properly encapsulated is a good thing. You have the right idea already, so keep doing what you're doing.
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How to enable CORS in AngularJs
... POSTMAN, but when I try to GET from https://www.google.com using an AJAX call I get the CORS error? Is there no way I can make the AJAX call behave similarly to the call from POSTMAN?
– AjaxLeung
Jan 27 '16 at 17:14
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how does Array.prototype.slice.call() work?
...ay, but I don't understand what happens when using Array.prototype.slice.call(arguments)
13 Answers
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Listing each branch and its last revision's date in Git
... And faster.
See also "Name only option for git branch --list?"
More generally, tripleee reminds us in the comments:
Prefer modern $(command substitution) syntax over obsolescent backtick syntax.
(I illustrated that point in 2014 with "What is the difference between $(command) and `com...