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Is there a better alternative than this to 'switch on type'?
...ictionary from Type to Action (or some other delegate). Look up the action based on the type, and then execute it. I've used this for factories before now.
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How can I use jQuery in Greasemonkey scripts in Google Chrome?
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I have written a few functions based on the Erik Vold's script to help run me run functions, code and other scripts in a document. You can use them to load jQuery into the page and then run code under the global window scope.
Example Usage
// ==UserScrip...
How to send file contents as body entity using cURL
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Mongoose's find method with $or condition does not work properly
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How to calculate the CPU usage of a process by PID in Linux from C?
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I wrote two little C function based on cafs answer to calculate the user+kernel cpu usage of of an process:
https://github.com/fho/code_snippets/blob/master/c/getusage.c
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How to use SQL Order By statement to sort results case insensitive?
I have a SQLite database that I am trying to sort by Alphabetical order. The problem is, SQLite doesn't seem to consider A=a during sorting, thus I get results like this:
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Automatically capture output of last command into a variable using Bash?
...y getting at results.
That being said, here is the "solution":
PROMPT_COMMAND='LAST="`cat /tmp/x`"; exec >/dev/tty; exec > >(tee /tmp/x)'
Set this bash environmental variable and issues commands as desired. $LAST will usually have the output you are looking for:
startide seth> ...
How to map and remove nil values in Ruby
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Ruby 2.7+
There is now!
Ruby 2.7 is introducing filter_map for this exact purpose. It's idiomatic and performant, and I'd expect it to become the norm very soon.
For example:
numbers = [1, 2, 5, 8, 10, 13]
enum.filter_map { |i| i * 2 if i.even? }
# => [4, 16, 20]
In your ...
Rails.env vs RAILS_ENV
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Difference between var_dump,var_export & print_r
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