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Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
...omething.
This line of the kernel gets called on the file passed to exec: https://github.com/torvalds/linux/blob/v4.8/fs/binfmt_script.c#L25
if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!'))
It reads the very first bytes of the file, and compares them to #!.
If the comparison is true, t...
Show an image preview before upload
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Can you resolve an angularjs promise before you return it?
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How to convert an int value to string in Go?
...f allocate one more object during conversion.
check the benchmark here: https://gist.github.com/evalphobia/caee1602969a640a4530
see https://play.golang.org/p/hlaz_rMa0D for example.
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Highlight bash/shell code in markdown
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I find good description at https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet#code
Code blocks are part of the Markdown spec, but syntax highlighting isn't.
However, many renderers -- like Github's and Markdown Here -- support syntax hig...
Interactive search/replace regex in Vim?
...Neovim now has a feature to preview the substitution:
Image taken from: https://medium.com/@eric.burel/stop-using-open-source-5cb19baca44d
Documentation of the feature: https://neovim.io/doc/user/options.html#'inccommand'
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git ahead/behind info between master and branch?
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Efficiently updating database using SQLAlchemy ORM
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Do declared properties require a corresponding instance variable?
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Groovy: what's the purpose of “def” in “def x = 0”?
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