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Only mkdir if it does not exist [duplicate]
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Do a test
[[ -d dir ]] || mkdir dir
Or use -p option:
mkdir -p dir
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Android notification is not showing
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The code won't work without an icon. So, add the setSmallIcon call to the builder chain like this for it to work:
.setSmallIcon(R.drawable.icon)
Android Oreo (8.0) and above
Android 8 introduced a new requirement of setting the channelId p...
RegEx backreferences in IntelliJ
I want to use IntelliJ's find-and-replace feature to perform the following transformation:
4 Answers
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Using Pylint with Django
I would very much like to integrate pylint into the build process for
my python projects, but I have run into one show-stopper: One of the
error types that I find extremely useful--: E1101: *%s %r has no %r
member* --constantly reports errors when using common django fields,
for example:
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Deprecated warning for Rails 4 has_many with order
...ve this model in my rails app which throws warning when I try to create records in console.
5 Answers
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When should we use intern method of String on String literals
According to String#intern() , intern method is supposed to return the String from the String pool if the String is found in String pool, otherwise a new string object will be added in String pool and the reference of this String is returned.
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Function in JavaScript that can be called only once
...executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this?
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An ASP.NET setting has been detected that does not apply in Integrated managed pipeline mode
I Installed DotNetOpenAuth SDK-3.4.5.10201.vsix and I can't get it working.
It works locally (when I run as localhost) but when i try to publish it ain't working.
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Differences between “java -cp” and “java -jar”?
...ATH and java -jar JAR_FILE_PATH ? Is one of them preferred to the other for running a Java application? I mean which one of these ways is more expensive for JVM (according to their machine resources usage)?
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Convert UNIX epoch to Date object
I'm plotting and performing calculations on uniformly distributed time series. The timestamps are currently stored as integers representing the number of seconds since the UNIX epoch (e.g. 1352068320 ), but Date objects seem more appropriate for plotting. How can I do the conversion?
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