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Rails mapping array of hashes onto single hash
I have an array of hashes like so:
4 Answers
4
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From inside of a Docker container, how do I connect to the localhost of the machine?
So I have a Nginx running inside a docker container, I have a mysql running on localhost, I want to connect to the MySql from within my Nginx. The MySql is running on localhost and not exposing a port to the outside world, so its bound on localhost, not bound on the ip address of the machine.
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What's the difference between eval, exec, and compile?
I've been looking at dynamic evaluation of Python code, and come across the eval() and compile() functions, and the exec statement.
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How to format a number as percentage in R?
One of the things that used to perplex me as a newby to R was how to format a number as a percentage for printing.
10 Answe...
Hidden features of C
I know there is a standard behind all C compiler implementations, so there should be no hidden features. Despite that, I am sure all C developers have hidden/secret tricks they use all the time.
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How dangerous is it to compare floating point values?
I know UIKit uses CGFloat because of the resolution independent coordinate system.
11 Answers
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Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
I am continuously receiving this error.
20 Answers
20
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Count the number of commits on a Git branch
I found this answer already: Number of commits on branch in git
but that assumes that the branch was created from master.
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Can iterators be reset in Python?
...n I reset an iterator / generator in Python? I am using DictReader and would like to reset it to the beginning of the file.
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RegEx for matching UK Postcodes
I'm after a regex that will validate a full complex UK postcode only within an input string. All of the uncommon postcode forms must be covered as well as the usual. For instance:
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