TILs - Fueling Curiosity, One Insight at a Time

We can make use of Set instead of an Array in Ruby when we would like to create sequences without duplicates and also can be used to compare two sets disregarding order as compared to array for which order of elements matter.

ActiveModel Boolean type inlcudes rules for coersion to handle user input appropriately. We can make use of this when ever we would need to do explicit type casting on user input. https://github.com/rails/rails/blob/47eadb68bfcae1641b019e07e051aa39420685fb/activemodel/lib/active_model/type/boolean.rb

active support has an unordered map like structure https://apidock.com/rails/ActiveSupport/OrderedHash, but it is actually called ordered hash (shrug)

Multiple ways to read files in golang explained - http://kgrz.io/reading-files-in-go-an-overview.html

When using docker-compose and when in doubt that containers are getting cached, pass --build option. Works like charm

chrome://net-internals

use chrome(v65 and above) local overrides to modify a webpage's assets and store on your local which will be loaded everytime you open the website - https://www.youtube.com/watch?v=UOn0b5kn3jk

If you have a dimple, it's a muscle atrophy - basically your muscle doesn't work

Use AbortController to cancel the promise.
/code
const controller = new AbortController();
const signal = controller.signal;
// pass this signal as option in your fetch request
fetch(url, {signal}).then(...).catch(...)

// now you can reject the above promise by calling abort like this
signal.abort()

//promise will get rejected with error "AbortError"

preloading data for custom sql,
profiles = Profile.find_by_sql(sql_query)
ActiveRecord::Associations::Preloader.new.preload(profiles, :user)

Some more stuff here http://cha1tanya.com/2013/10/26/preload-associations-with-find-by-sql.html