Towry Wang towry

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

https://github.com/towry/test-tabed/tree/master/calayer/calayer

see the Makefile: https://github.com/towry/TasskySidebar/blob/master/Makefile

Keybase proof

I hereby claim:

I am towry on github.
I am towry (https://keybase.io/towry) on keybase.
I have a public key whose fingerprint is B48B 3AEB 954C 5CC4 F323 B0FE E6AA 531E C52D DED3

To claim this, I am signing this object:

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	<style id="jsbin-css">
	body {
	padding-top: 3rem;
	}

	//: Playground - noun: a place where people can play

	import Foundation
	import PlaygroundSupport

	URLCache.shared = URLCache(memoryCapacity: 0, diskCapacity: 0, diskPath: nil)

	let url = URL(string: "http://www.baidu.com")

	let task = URLSession.shared.dataTask(with: url!) {data, response, error in

	/*!

	https://blog.jcoglan.com/2011/03/05/translation-from-haskell-to-javascript-of-selected-portions-of-the-best-introduction-to-monads-ive-ever-read/


	this is a function with side effect, to dealing with side effect,
	we can format it into return value, because pure function can only
	have input and output (return) effect to outside world.

	```js

	/// https://github.com/apple/swift-evolution/blob/master/proposals/0142-associated-types-constraints.md

	protocol SubContainer: Container {
	associatedtype Item: Equatable
	}

	protocol Container {
	associatedtype Item
	// error: 'where' clause cannot be attached to an associated type declaration
	// error: type may not reference itself as a requirement

	// So associated objects just store object in anoter place, use property to
	// associate the object with the class object.

	import Foundation

	let data: Data?
	var dataKey: Void?

	data = Data(count: 10)
	data?.insert(9, at: 0)

	//
	// https://medium.com/@jegnux/safe-collection-subsripting-in-swift-3771f16f883
	// https://github.com/ReactiveX/RxSwift/issues/826
	//


	import Foundation

	// we define a fire protocol.
	protocol FireProtocol {