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Get names of all files from a folder with Ruby
...| File.directory? e }
Alternative Solution
Using Find#find over a pattern-based lookup method like Dir.glob is actually better. See this answer to "One-liner to Recursively List Directories in Ruby?".
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Who is listening on a given TCP port on Mac OS X?
... This is great. I prefer to know what's there before I kill it, so (based on this) I just added to my bashrc: whatsonport() { ps -ef | grep `lsof -t -i :$1` }, so: ⇒ whatsonport 3000 --> 501 14866 14865 0 6:07AM ttys006 0:01.73 node .
– Sigfried
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Is assert evil? [closed]
...problem that makes defenses of assertions confusing is that they are often based on argument checking. So consider this different example of when you might use an assertion:
build-sorted-list-from-user-input(input)
throw-exception-if-bad-input(input)
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//build list using algorithm ...
Find directory name with wildcard or similar to “like”
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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RegEx for matching UK Postcodes
... and only enforces the format, NOT the existence of different areas. It is based on the following rules:
Can accept the following formats:
“GIR 0AA”
A9 9ZZ
A99 9ZZ
AB9 9ZZ
AB99 9ZZ
A9C 9ZZ
AD9E 9ZZ
Where:
9 can be any single digit number.
A can be any letter except for Q, V or X.
B can be...
npm install errors with Error: ENOENT, chmod
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Ok it looks like NPM is using your .gitignore as a base for the .npmignore file, and thus ignores /lib. If you add a blank .npmignore file into the root of your application, everything should work.
[edit] - more info on this behaviour here: https://docs.npmjs.com/misc/devel...
How to paste in a new line with vim?
...ly I've nmapped Enter (CR) like this:
nmap <CR> o<Esc>k
...based on this Vim Wikia article.
This way I can make newlines directly from normal mode, and combining this with wanting to paste to a newline below I'd do:
<CR>jp
You could also skip k in the nmap above, depending ...
Validating URL in Java
...uthority component of this URI is defined but cannot be parsed as a server-based authority according to RFC 2396". While this is much better than most other proposals, it cannot validate a URL.
– Martin
Apr 16 '19 at 10:52
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How to force an entire layout View refresh?
...n);
public void setTheme (int resid)
Since: API Level 1
Set the base theme for this context. Note that this should be called before any views are instantiated in the Context (for example before calling setContentView(View) or inflate(int, ViewGroup)).
The API doc reference is here: http...
How to redirect to previous page in Ruby On Rails?
...to(request.env['HTTP_REFERER'])
http://apidock.com/rails/ActionController/Base/redirect_to (pre Rails 3) or http://apidock.com/rails/ActionController/Redirecting/redirect_to (Rails 3)
Please note that redirect_to(:back) is being deprecated in Rails 5. You can use
redirect_back(fallback_location:...