Programming with Functions #4 - unapply and newtype

preview_player
Показать описание
Design your code around your cats.
Data.
I mean data.

Background music:
Winter Night, Summer Day by Beluga Ten (c) copyright 2019
Licensed under a Creative Commons Attribution Noncommercial (3.0) license.

Cat's eyes:
  1. makingthematrix
  2. scala
  3. programming
  4. fp
  5. functional programming
  6. pattern matching
Рекомендации по теме
Programming with Functions 0:10:01

Programming with Functions #4 - unapply and newtype

#15 C Functions 0:16:57

#15 C Functions | C Programming for Beginners

programming for beginners 0:00:24

programming for beginners (part 4: functions)

Part 6 | 1:28:33

Part 6 | Functions and Type of Functions | C Programming Malayalam Tutorial

IGCSE Computer Science 0:11:54

IGCSE Computer Science 2023-25 ​​- Topic 8: Programming (4) - Functions and Procedures

C Programming - 1:31:41

C Programming - Chapter 4 - Functions and Program Structure

Function Basics | 0:15:36

Function Basics | C Programming Tutorial

Programming Basics: Statements 0:11:57

Programming Basics: Statements & Functions: Crash Course Computer Science #12

Function in Python 0:13:43

Function in Python Programming – Full Tutorial with Examples for Beginners

Swift 4 Programming 0:08:12

Swift 4 Programming #11 - Functions

Python Programming Part 0:03:32

Python Programming Part 4: Function Introduction

TUTORIAL: Classes, Methods, 0:11:13

TUTORIAL: Classes, Methods, Functions [4] - Introduction to Java 8 Programming

What are Functions? 0:04:31

What are Functions? Coding for Kids | Kodable

Coding for 1 0:00:24

Coding for 1 Month Versus 1 Year #shorts #coding

Python Programming Series 0:19:16

Python Programming Series (Functions 4): Examples of functions

How to create 0:00:14

How to create graphics using Python turtle 🐍🐢 #coding

Programming For Teenagers(Python) 0:17:45

Programming For Teenagers(Python) #4 -- Functions (Programming Fundamentals)

Format Code in 0:00:07

Format Code in VS Code - Shortcut

13. C++ Basic 0:13:04

13. C++ Basic Programming Tutorial: Functions IV - Recursion

complete unit 4 0:36:20

complete unit 4 | functions in c | c language | pps | programming for problem solving | btech

Css Time-Functions #css 0:00:06

Css Time-Functions #css #coding #function #Website #frontenddeveloper #cssanimation

Built-in Functions - 0:09:37

Built-in Functions - Python 3 Programming Tutorial p.4

Python Programming Series 0:06:58

Python Programming Series (Variables and Built-in Functions 4): Functions in functions

C Programming #4: 0:04:39

C Programming #4: Functions

Комментарии
Автор

Very very cool video. I think it's better than live coding.

avalagum
Автор

Cool video!

A couple of minor notes:

1. You can mark an unapply method to return a Some[A] instead of Option[A] such that the compiler knows it will always match, this is really useful now that since 2.13.x (can't remember in which version it was) the compiler is more strict with exhaustive warnings.

2. Using AnyVal for newtypes is a bad idea, not only because you can not extend other traits, but because they may box _(and then unbox)_ multiple times if you are not careful. As such, most people recommend only using AnyVal for extension methods or the partially-applied type trick.
Thankfully we have scala-newtype and Scala 3 will have opaque types.

luismiguelmejiasuarez
visit shbcf.ru