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Scala: join an iterable of strings
...Strings.mkString(",")
A variant exists in which you can specify a prefix and suffix too.
See here for an implementation using foldLeft, which is much more verbose, but perhaps worth looking at for education's sake.
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How to check if a Unix .tar.gz file is a valid file without uncompressing?
... tar file without a file? , but I was wondering: is there a ready made command line solution?
8 Answers
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Unix command-line JSON parser? [closed]
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You can use this command-line parser (which you could put into a bash alias if you like), using modules built into the Perl core:
perl -MData::Dumper -MJSON::PP=from_json -ne'print Dumper(from_json($_))'
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How do I add a new sourceset to Gradle?
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This took me a while to figure out and the online resources weren't great. So I wanted to document my solution.
This is a simple gradle build script that has an intTest source set in addition to the main and test source sets:
apply plugin: "java"
sourceSets...
Unicode equivalents for \w and \b in Java regular expressions?
Many modern regex implementations interpret the \w character class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
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Given two directory trees, how can I find out which files differ by content?
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Nice. But shorter is diff -qr dir1/ dir2/ and my extended version to diff -qr dir1/ dir2/ | grep ' differ'
– sobi3ch
Aug 7 '15 at 13:18
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sed one-liner to convert all uppercase to lowercase?
....txt > output.txt for GNU sed works fine too
– Asfand Qazi
Apr 13 '17 at 8:49
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@ekkis OSX is ...
Is it acceptable and safe to run pip install under sudo?
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I don't understand why this is the best answer. The question is NOT about virtual environments. It's about validity of using sudo pip install. Let's say I need to install some package that I'll use in many projects or at system level. Such ...
'Microsoft.SqlServer.Types' version 10 or higher could not be found on Azure
... webapi in ASP.NET MVC 4. The webapi used Entity Framework 5 Spatial types and i have wrote a very simple code.
12 Answers...
Difference between app.all('*') and app.use('/')
Is there a useful difference between app.all('*', ... ) and app.use('/', ...) in Node.JS Express?
7 Answers
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