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How to wait for a keypress in R?
I want to pause my R script until the user presses a key.
6 Answers
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How to identify numpy types in python?
How can one reliably determine if an object has a numpy type?
6 Answers
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How do I get a UTC Timestamp in JavaScript?
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Dates constructed that way use the local timezone, making the constructed date incorrect. To set the timezone of a certain date object is to construct it from a date string that includes the timezone. (I had problems getting that to work in an older ...
dplyr: “Error in n(): function should not be called directly”
I am attempting to reproduce one of the examples in the dplyr package but am getting this error message. I am expecting to see a new column n produced with the frequency of each combination. What am I missing? I triple checked that the package is loaded.
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Docker and securing passwords
I've been experimenting with Docker recently on building some services to play around with and one thing that keeps nagging me has been putting passwords in a Dockerfile. I'm a developer so storing passwords in source feels like a punch in the face. Should this even be a concern? Are there any good ...
Is there a performance gain in using single quotes vs double quotes in ruby?
Do you know if using double quotes instead of single quotes in ruby decreases performance in any meaningful way in ruby 1.8 and 1.9.
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A good solution for await in try/catch/finally?
I need to call an async method in a catch block before throwing again the exception (with its stack trace) like this :
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Spring - @Transactional - What happens in background?
I want to know what actually happens when you annotate a method with @Transactional ?
Of course, I know that Spring will wrap that method in a Transaction.
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What is an unsigned char?
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In C++, there are three distinct character types:
char
signed char
unsigned char
If you are using character types for text, use the unqualified char:
it is the type of character literals like 'a' or '0'.
it is the type that makes up C strings like "abcde"
It al...
Can git ignore a specific line?
I'm using git to sync to phonegap while testing on the phone's native browser. As such I have the following line:
8 Answers...