Sung M. Kim dance2die

Beginner's Thread / Easy Questions (November 2019)

[Previous threads][wiki previous threads] can be found in the Wiki.

Got questions about React or anything else in its ecosystem? Stuck making progress on your app?
Ask away! We’re a friendly bunch.

No question is too simple. 🙂

# install docker
wget -nv -O - https://get.docker.com/ | sh
# setup dokku apt repository
-wget -nv -O - https://packagecloud.io/dokku/dokku/gpgkey | apt-key add -
+wget -nv -O - https://packagecloud.io/dokku/dokku/gpgkey | sudo apt-key add -
export SOURCE="https://packagecloud.io/dokku/dokku/ubuntu/"
export OS_ID="$(lsb_release -cs 2>/dev/null || echo "trusty")"
echo "utopicvividwilyxenialyakketyzestyartfulbionic" | grep -q "$OS_ID" || OS_ID="trusty"
-echo "deb $SOURCE $OS_ID main" | tee /etc/apt/sources.list.d/dokku.list

	ls \| % {
	# https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_split?view=powershell-6
	$parsed = $_.Name -split '(\d{4})-(\d{2})-(\d{2})-(.*)'
	$year = $parsed[1];
	$month = $parsed[2];
	$day = $parsed[3];
	$name = $parsed[4];

	$newDir = "$year/$month/$day";

	// Original code
	const pingEpic = (
	action$,
	) => (
	action$
	.pipe(
	ofType(PING),
	delay(1000),
	map(pong),
	)

	export const pingEpic = action$ =>
	action$.pipe(
	ofType(PING),
	// 1️⃣ from "delay(1000)" to 👇
	switchMap(() => timer(1000)),
	mapTo(pong()),
	tap(console.info)
	);

	// 2️⃣ pongEpic stays the same.

	import { ofType } from "redux-observable";
	import { mapTo, tap, delay } from "rxjs/operators";

	export const PING = "PING";
	export const PONG = "PONG";

	export const ping = () => ({ type: PING });
	export const pong = () => ({ type: PONG });

	export const pingEpic = action$ =>

	dance2die@dokku:~/node-js-getting-started$ git push dokku master
	Enter passphrase for key '/home/dance2die/.ssh/id_rsa':
	Counting objects: 3, done.
	Delta compression using up to 4 threads.
	Compressing objects: 100% (2/2), done.
	Writing objects: 100% (3/3), 291 bytes \| 291.00 KiB/s, done.
	Total 3 (delta 1), reused 0 (delta 0)
	-----> Cleaning up...
	-----> Building node-js-getting-started from herokuish...
	-----> Adding BUILD_ENV to build environment...

	# Install Open SSH server & client
	sudo apt install openssh-server openssh-client

	# Open port 22 to allow connection
	sudo ufw allow 22

	# Deploy the code to Dokku
	git push dokku master

	# 1️⃣ 2️⃣ 3️⃣ 4️⃣
	git remote add dokku dokku@dokku:node-js-getting-started