Boris Burdiliak bburdiliak

What is React Fiber? And how can I try it out today?

what?

React Fiber is an ongoing reimplementation of React's core algorithm. It is the culmination of over two years of research by the React team.

why?

Applied Functional Programming with Scala - Notes

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

Git

Global Settings

Related Setup: https://gist.github.com/hofmannsven/6814278
Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/
Interactive Beginners Tutorial: http://try.github.io/
Git Cheatsheet by GitHub: https://services.github.com/on-demand/downloads/github-git-cheat-sheet/

Reminder

Press minus + shift + s and return to chop/fold long lines!

	package zero

	import izumi.reflect.Tag
	import Kyo.*
	import scala.collection.View.FlatMap

	type Id[T] = T
	type Const[T] = [U] =>> T
	type MX[T] = Any

	package example

	object RecMap {

	object Record {
	// use this scope to bound who can see inside the opaque type
	opaque type Rec[A <: Tuple] = Map[String, Any]

	object Rec {
	type HasKey[A <: Tuple, K] =

	class Attachment < ActiveRecord::Base
	mount_uploader :attachment, AttachmentUploader

	# Associations

	belongs_to :attached_item, polymorphic: true

	# Validations

	validates_presence_of :attachment