Gary Haran garyharan

If you want to create an extra attribute based on SQL query with ActiveRecord you can use the following:

@games = Game.select("*, ABS(#{@profile.level} - level) AS level_difference")

Then in your Ruby code you can refer to things this way:

@games.first.level_difference # =&gt; 16

Installing Turbo iOS on a Swift app

First run sudo gem install cocoapods Then touch Podfile

We need a way back to the tab when resetting passwords or getting a token from email or second factor authentication.

Too often we open a bunch of tabs and forget which one was open.

Imagine if we could create a token that would reopen the given tab that initiated the exit.

window.security.tabIdToken // returns: 35c7b72b-00bd-4734-81f7-318392f52370

	0..1_000_000
	\|> Enum.each(fn(_n) ->
	IO.puts "Creating process: #{Process.list \|> Enum.count}"
	spawn(fn -> Process.sleep(:infinity)
	end)
	end)

	$ git status
	5 commits pending
	$ git reset --soft HEAD~5 # where 5 is the number of commits you saw in the `git status`
	$ git stash

	# initiate the change with an interactive rebase from the point you want
	git rebase -i SHA^
	git reset HEAD^

	# do this as many times as you need.
	git add -p
	git commit -v

	# once all your changes are committed
	git rebase --continue

	A friend of mine, approaching 50, works as a programmer in a medium sized consultancy. In a recent conversation he told me how he felt like he was feeling older now that they had hired many 20-somethings in his company. The younger developers, he said, would do things faster than he would and it started to look like he was just a slower developer than the more youthful new hires. He was wondering if his days were numbered.

	He was resigning himself to the idea that he was experiencing some kind of decline of his faculties if he compared himself to the more youthful years of his career. However this wasn’t the only conversation I had about the work at his company. The conversation before that one had him put the finger on something crucial.

	So I had a conversation with him about it and we connected the dots.

	Me: What was the password story they tackled?
	Him: A password reset.
	Me: And what was wrong with how they implemented it.
	Him: Well the user typed their email in and then if they click the “forgot passw

	# Story time: Classy Switch Classes

	# Say you have a bunch of messages coming in Slack and you'd like to add an automatic emoji
	# of course your team is multicultural and you may want to cater to the diverse crowd you have.

	# For the purpose of this exercise we will treat `message#emojis` and `message#replies` as arrays we can push to.

	# You could write your code like this:

	if message.text.include?("Good morning!")

	# Instead of rebooting system
	# If audio has half going through speakers and half going through headphones.
	ps aux \| grep 'coreaudio[d]' \| awk '{print $2}' \| xargs sudo kill

	# as per https://rubydoc.info/github/teamcapybara/capybara/master#using-capybara-with-minitest
	require 'capybara/rails'
	require 'capybara/minitest'

	class ActionDispatch::IntegrationTest
	# Make the Capybara DSL available in all integration tests
	include Capybara::DSL
	# Make `assert_*` methods behave like Minitest assertions
	include Capybara::Minitest::Assertions