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When should I use jQuery deferred's “then” method and when should I use the “pipe” method?
... @hippietrail: I updated my answer in the meantime and also included the other purposes of .pipe(). If the callback returns a deferred object, subsequent done or fail callbacks will be registered for that object. I will include another example. edit: regarding your second comment: yes...
Merge / convert multiple PDF files into one PDF
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pdfjam package doesn't include pdfjoin script anymore. You can find the script here
– Henrik Pingel
Jul 15 at 13:46
How to mkdir only if a directory does not already exist?
..., and foo/bar/baz if they don't exist.
Some implementation like GNU mkdir include mkdir --parents as a more readable alias, but this is not specified in POSIX/Single Unix Specification and not available on many common platforms like macOS, various BSDs, and various commercial Unixes, so it should b...
Delete fork dependency of a GitHub repository
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@MattBrennan The page changed but the last section still includes: "To detach the fork and turn it into a standalone repository on GitHub.com or GitHub Enterprise, contact GitHub support or your site administrator, respectively."
– Thomas Moulard
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Reimport a module in python while interactive
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How do I parse command line arguments in Bash?
...hell (and others) offer getopts which doesn't have these limitations. I've included a simplistic getopts example.
Usage demo-getopts.sh -vf /etc/hosts foo bar
cat >/tmp/demo-getopts.sh <<'EOF'
#!/bin/sh
# A POSIX variable
OPTIND=1 # Reset in case getopts has been used previously ...
Does adding a duplicate value to a HashSet/HashMap replace the previous value
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Why are regular expressions so controversial? [closed]
... out that you need $4 or \7. This helps when creating patterns that can be included in further patterns.
Here is an example a relatively numbered capture group:
$dupword = qr{ \b (?: ( \w+ ) (?: \s+ \g{-1} )+ ) \b }xi;
$quoted = qr{ ( ["'] ) $dupword \1 }x;
And here is an example of the super...
Create a custom callback in JavaScript
...bwoman - It depends on your use case. You could pass it as an argument, or include it in some kind of settings/options object, or any of several other options.
– T.J. Crowder
Feb 6 '19 at 7:50
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How do I split a string into an array of characters? [duplicate]
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Thanks Felix. I've updated my answer to include charAt as defined pre ECMAScript 5.
– Jamie Dixon
Jun 26 '11 at 15:01
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