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Find and restore a deleted file in a Git repository

...mmit, this commit must have deleted it. git rev-list -n 1 HEAD -- <file_path> Then checkout the version at the commit before, using the caret (^) symbol: git checkout <deleting_commit>^ -- <file_path> Or in one command, if $file is the file in question. git checkout $(git re...
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How can I pass a parameter to a setTimeout() callback?

...ed here. This is copied and pasted from the excellent underscore library: _.delay = function(func, wait) { var args = slice.call(arguments, 2); return setTimeout(function(){ return func.apply(null, args); }, wait); }; You can pass as many arguments as you'd like to the function called by setT...
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Django: Display Choice Value

... It looks like you were on the right track - get_FOO_display() is most certainly what you want: In templates, you don't include () in the name of a method. Do the following: {{ person.get_gender_display }} ...
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How to remove specific elements in a numpy array

...mpy as np a = np.array([1, 2, 3, 4, 5, 6, 7, 8, 9]) index = [2, 3, 6] new_a = np.delete(a, index) print(new_a) #Prints `[1, 2, 5, 6, 8, 9]` Note that numpy.delete() returns a new array since array scalars are immutable, similar to strings in Python, so each time a change is made to it, a new ob...
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Base64 length calculation?

... @techie_28: I make it 27308 characters for 20 * 1024 bytes, but I haven't had coffee yet this morning. – Paul R Jul 22 '16 at 6:21 ...
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Insert line after first match using sed

... Alternatively, for portability, you can use perl instead: perl -pi -e '$_ .= qq(CLIENTSCRIPT2="hello"\n) if /CLIENTSCRIPT=/' file Or you could use ed or ex: printf '%s\n' /CLIENTSCRIPT=/a 'CLIENTSCRIPT2="hello"' . w q | ex -s file ...
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Correct approach to global logging in Golang

...) return logger } func createLogger(fname string) *logger { file, _ := os.OpenFile(fname, os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0777) return &logger{ filename: fname, Logger: log.New(file, "My app Name ", log.Lshortfile), } } You can use it in this way package ...
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Where can I get a “useful” C++ binary search algorithm?

...that is compatible with the C++ STL containers, something like std::binary_search in the standard library's <algorithm> header, but I need it to return the iterator that points at the result, not a simple boolean telling me if the element exists. ...
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Drop multiple tables in one shot in mysql

... SET foreign_key_checks = 0; DROP TABLE IF EXISTS a,b,c; SET foreign_key_checks = 1; Then you do not have to worry about dropping them in the correct order, nor whether they actually exist. N.B. this is for MySQL only (as in the quest...
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How to make a in Bootstrap look like a normal link in nav-tabs?

... not good (e.g. if you use "$link-decoration: underline !default;" in your _variables.scss). This should be probably noted by developers - perhaps this is not what they wanted to achieve. The link should be styled COMPLETELY as a button. – Dmitry Somov Apr 27 '...