Discover gists

Animation button

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

show dbs

	import UIKit
	import Vision
	import AVFoundation
	import Foundation

	class ScanViewController: UIViewController {
	private lazy var cameraPreviewLayer: AVCaptureVideoPreviewLayer = {
	let l = AVCaptureVideoPreviewLayer(session: captureSession)
	l.videoGravity = .resizeAspectFill
	l.connection?.videoOrientation = .portrait

	const news = [
	"https://jsonplaceholder.typicode.com/posts/1",
	"https://jsonplaceholder.typicode.com/posts/2",
	"https://jsonplaceholder.typicode.com/posts/3",
	"https://jsonplaceholder.typicode.com/posts/4",
	"https://jsonplaceholder.typicode.com/posts/5",
	"https://jsonplaceholder.typicode.com/posts/6",
	"https://jsonplaceholder.typicode.com/posts/7",
	"https://jsonplaceholder.typicode.com/posts/8",
	"https://jsonplaceholder.typicode.com/posts/9",

	public poll$<T>(
	request$: () => Observable<T>,
	delayTime: number = this.getPollingInterval()
	): Observable<T> {
	return interval(delayTime).pipe(
	switchMap(() => request$())
	);
	}

	const counter = createCounter(); // { increment: Function, decrement: Function, value: Number }

	counter.increment();
	counter.value