Fueling Curiosity, One Insight at a Time

Elixir and Erlang has a limit on the number of atoms that can be created. We can view the atom limit using :erlang.system_info(:atom_limit). Atom's text value is stored in the atom table and this is not garbage collected. This explains why user inputs to phoenix routes are to be matched with strings rather than atoms.

https://makandracards.com/makandra/5365-git-diff-staged-changes especially git diff --cached master is very useful,
1. if you do not like to look at web-ui for diff and
2. has a quite a bit code which you dont want to stage atm.

rubocop -a can autocorrect many kinds of issues.

ActiveRecord update_all does not touch updated_at

byebug

new design layout, pretty cool https://www.smashingmagazine.com/2018/05/guide-css-layout/

If one wants to run iex without starting any applications iex -S mix run --no-start is very handy

For models A and B, if A has_one B, then A.new.b.build wont work. You have to say A.new.build_b.

Sidekiq processes jobs in a multithreaded process. Which means there is no guarantee that the jobs that are enqueued will processed in the same order. So you'd need to consider the aspect of context switch that can happen and thus make sure that the worker code is thread safe.

Today I came to know that the name of process which takes care of clipboard is called pboard on mac. If clipboard is acting funny, just kill this process!