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How to evaluate a math expression given in string form?
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Get records with max value for each group of grouped SQL results
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edited Jun 20 at 9:12
Community♦
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answered Aug 24 '12 at 1:55
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Random number from a range in a Bash Script
I need to generate a random port number between 2000-65000 from a shell script. The problem is $RANDOM is a 15-bit number, so I'm stuck!
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How to clear gradle cache?
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As @Bradford20000 pointed out in the comments, there might be a gradle.properties file as well...
How do I measure separate CPU core usage for a process?
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edited Jul 6 '18 at 2:55
Bojin Li
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Fastest way to replace NAs in a large data.table
...e a large data.table , with many missing values scattered throughout its ~200k rows and 200 columns. I would like to re code those NA values to zeros as efficiently as possible.
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How to determine day of week by passing specific date?
For Example I have the date: "23/2/2010" (23th Feb 2010). I want to pass it to a function which would return the day of week . How can I do this?
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“cannot resolve symbol R” in Android Studio
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Scala: Nil vs List()
...intln (Nil equals List())
true
scala> System.identityHashCode(Nil)
374527572
scala> System.identityHashCode(List())
374527572
Nil is more idiomatic and can be preferred in most cases.
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