题叶 tiye

Charts are from different sources and thus colors are inconsistent, please carefully read the chart's legends.

Like this? Check React Native vs Flutter: https://gist.github.com/tkrotoff/93f5278a4e8df7e5f6928eff98684979

Stack Overflow trends

https://insights.stackoverflow.com/trends?tags=reactjs%2Cvue.js%2Cangular%2Csvelte%2Cangularjs%2Cvuejs3

Algebraic Effects in JavaScript part 4 - Implementing Algebraic Effects and Handlers

This is the final part of a series about Algebraic Effects and Handlers.

Part 1 : continuations and control transfer
Part 2 : Capturing continuations with Generators
Part 3 : Delimited continuations
Part 4 : Implementing Algebraic Effects and handlers

So we've come to the core topic. The reality is that we've already covered most of it in the previous parts. Especially, in the third part, where we saw delimited continuations at work.

This is a demo of experimental work into ClojureScript parameter type inference.

The work is in a branch, and if you'd like to try out any of this yourself, you can start up a REPL based on the experimental branch using the following command, and play along at home:

clj -Srepro -Sdeps '{:deps {github-mfikes/gist-1e2341b48b882587500547f6ba19279d {:git/url "https://gist.github.com/mfikes/1e2341b48b882587500547f6ba19279d" :sha "55d6c6e9a1c4fc9b58fec74aef1af4aba57bad2a"}}}' -m cljs.main -co @compile-opts.edn -re node -r

To date, all ClojureScript inference "flows" in a certain direction, essentially from primitive values or type-hinted locals to their use sites. For example, consider this expression:

If you enjoyed reading this, I'm intending to do more blogging like this over here: https://cdgd.tech

This is not a complaint about Webpack or v4 in any way. This is just a record of my process trying it out so I could provide feedback to the webpack team

Hmm... I don't see any docs for 4.0 on https://webpack.js.org. I guess I'll just wing it. All I need to do is npm i -D webpack@next, right?

+ [email protected]

Monoids in Haskell, an Introduction

Why should programmers care about Monoids? Because Monoids are a common pattern that shows up over and over in programming. And when patterns show up, we can abstract them and leverage work we've done in the past. This allows us to quickly develop solutions on top of proven, stable code.

Add Commutative Property to a Monoid (Commutative Monoid) and you have something that can be executed in parallel. With the end of Moore's Law, parallelism is our only hope to increasing processing speeds.

What follows is what I've learned after studying Monoids. It is hardly complete, but hopefully will prove to be helpful as an introduction for others.

Monoid Lineage

shadow-cljs code split

Quick comparison to the cljs.loader recently added to CLJS.

Things shadow-cljs does for you:

enable-console-print! is a config option, you do not need to call it
loader/set-loaded! will be injected for you as well

Install

Achieving warp speed with Rust

	// Copied from typescript playground - https://www.typescriptlang.org/play/

	class Vector {

	constructor(public x: number, public y: number, public z: number) { }

	static times(k: number, v: Vector) {
	return new Vector(k * v.x, k * v.y, k * v.z);
	}

	(ns specter-idea
	(:require [com.rpl.specter :as specter :refer [setval ALL
	NONE multi-path
	selected?
	pred
	]]))

	(def data ;; only x and y are allowed
	[{:name "x" :rels ["x" "y"]} ;=> fine, keep as is
	{:name "y" :rels ["x" "y" "z"]} ;=> keep only allowed rels: {:name "y" :rels ["x" "y"]}

	type
	MaybeKind = enum Just, Nothing
	Maybe[T] = object
	case kind: MaybeKind
	of Just: value: T
	of Nothing: discard

	EitherKind = enum Left, Right
	Either[L, R] = object
	case kind: EitherKind