Rinas 🧑‍💻

TIL Variable hoisting in ruby

TIL about 'bin/rails runner' in Rails

TIL in Ruby: `arity`

Returns the number of mandatory arguments.
If the block is declared to take no arguments, returns 0.
If the block is known to take exactly n arguments, returns n.
If the block has optional arguments, returns -n-1

https://apidock.com/ruby/Proc/arity

[Ruby][Rails] Learned about a new gem decent_exposure

https://github.com/hashrocket/decent_exposure

TIL about PostgreSQL follower database in Heroku

TIL in Flutter, we can specify the app version and build number in pubspec.yaml

I was changing the marketing version and build number manually in Xcode but looks like it can be controlled from pubspec.yaml file which is very handy

TIL we can use `xed` to open Xcode with given folder or project

TIL in Javascript, Date `getMonth()` does not give the correct month as we expect 🤯

today = new Date()
Thu May 05 2022 19:28:34 GMT+0530 (India Standard Time)
today.getMonth()
4

TIL we can compare versions in Ruby using `Gem::Version` without any gems

Gem::Version.new('1.0.1') > Gem::Version.new('1.0.0')

TIL in Flutter (iOS): No transparent images allowed in assets

TIL How to change screenshot directory in macOS

defaults write com.apple.screencapture location {location here}

defaults write com.apple.screencapture location /Users/rinas/Desktop/Screenshots

Heroku cli for rails console

heroku run rails c -a APP_NAME

TIL in Rails: Code after redirect_to gets executed

redirect_to url and return

TIL about using counter_cache in rails to save association's count in parent model

I had used counter_cache in the past but still had to look it up :D

Here is the SO answer that helped: https://stackoverflow.com/a/16996960/3098242

TIL how to select values from one column without `nil` in Rails

Update:

There is a better way to do this as discussed here in Twitter

Page.where.not(custom_domain: nil).pluck(:custom_domain)

---------------------------------------

Page.pluck(:custom_domain)

`.pluck` picks values but includes `nil` as well. So we can use `.compact`

Page.pluck(:custom_domain).compact

TIL How to change progress bar colour in Rails

.turbo-progress-bar {
  background-color: black;
}

TIL how to set default ruby version using RVM

rvm --default use 3.1.0

TIL what policy to use for AWS S3 to work with Rails Active Storage

https://edgeguides.rubyonrails.org/active_storage_overview.html#s3-service-amazon-s3-and-s3-compatible-apis

TIL how to colour console logs

We can change the colour of log in console like this:

console.log('%c hey red text', 'color: red')
console.log('%c hey green text', 'color: green')