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How to tell which commit a tag points to in Git?
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$ git rev-list -n 1 $TAG
You could add it as an alias in ~/.gitconfig if you use it a lot:
[alias]
tagcommit = rev-list -n 1
And then call it with:
$ git tagcommit $TAG
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How to change the default font size in ggplot2
I'd like to know if it is possible to change some default parameters of ggplot2 graphics, like font size for instance, for a whole R session. The idea is to avoid setting them for each plot.
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How to add a string to a string[] array? There's no .Add function
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Array.Resize is the proper way to resize an array. If you add a comment before the code snippet saying it's rarely the best way to handle situations where the array represents a resizable collection you've got a +1. :)
– Sam Harwell
Sep ...
Setting an environment variable before a command in Bash is not working for the second command in a
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Note that if you need to run your somecommand as sudo, you need to pass sudo the -E flag to pass though variables. Because variables can introduce vulnerabilities. stackoverflow.com/a/8633575/1695680
– ThorSummone...
Difference between a Structure and a Union
Is there any good example to give the difference between a struct and a union ?
Basically I know that struct uses all the memory of its member and union uses the largest members memory space. Is there any other OS level difference?
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How to get current language code with Swift?
...t get the language code of the device (en, es...) in my app written with Swift. How can get this?
12 Answers
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What does this thread join code mean?
...nd/or t2 could have finished before the main thread calls join() on them. If so then join() will not wait but will return immediately.
t1.join() means cause t2 to stop until t1 terminates?
No. The main thread that is calling t1.join() will stop running and wait for the t1 thread to finish. ...
How do you launch the JavaScript debugger in Google Chrome?
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Windows: CTRL-SHIFT-J OR F12
Mac: ⌥-⌘-J
Also available through the wrench menu (Tools > JavaScript Console):
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When correctly use Task.Run and when just async-await
... All your library methods should be using ConfigureAwait(false). If you do that first, then you may find that Task.Run is completely unnecessary. If you do still need Task.Run, then it doesn't make much difference to the runtime in this case whether you call it once or many times, so just ...
How can I change the text inside my with jQuery?
... span').html('baa baa <strong>black sheep</strong>');
text() if just text content. html() if it contains, well, html content.
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