Multiple dispatch

on YouTube ↗04m

" summary

A JavaScript library that implements multiple dispatch by creating a generic function 'plus' then adding methods and calling it demonstrates that parameter types determine which implementation runs and that dispatch maps parameter types to methods. The claim is that multiple dispatch restores symmetry lost to single-dispatch this makes functions aware of type hierarchies and replaces visitor-pattern boilerplate with a visitor pattern as generic function and examples show it working in code and list languages that already support it.

AI-written summary · about

" chapters (7)

1. 0:00Start
2. 0:15What is method dispatch?
3. 0:49Dispatch: via an object or via a function Polymorphic method: dispatch via an object
4. 1:45More than one parameter
5. 1:56Adding methods to a generic function
6. 2:37Benefits of multiple dispatch
7. 3:57Languages with multiple dispatch

" related talks

• 31mMONADS - CODING FUNCTIONALLYAliaksandr Famchankou · The Rolling Scopes #46 Mogilev
• 20mFunctional JavaScriptDhanji R. Prasanna · Web Directions South 2013
• 35mAll-You-Can-Eat-Types: Monad BuffetAlexander Gerasimov · The Rolling Scopes Conference 2018
• 34mFunctional JavaScript for everyoneBartłomiej Witczak · 4Developers 2017
• 01h 03mFunctional Programming in JavaScriptRouben Meschian · JS Conf Armenia 2017
• 52mJavaScript Design PatternsMassimo Foti · Voxxed Days Ticino 2018
• 35mFunctional programming and curry cooking in JSStefanie Schirmer · Full Stack Fest 2015
• 06mBrian Lonsdorf (loop/recur) interviewed at Fluent 2014Brian Lonsdorf · Fluent 2014