🍑

Mark Odayan markodayan

🍑

🅱️lonkchains and distributed systems. Writing code once in a blue moon

markodayan / assertion-library.js

Created July 18, 2020 12:01

Assertion Libary Basic Example (JS Testing)

	const { sum, subtract } = require('../math'); // const sum = (a, b) => a - b; const subtract = (a, b) => a - b;
	// sum is intentionally wrong to check if error handling is done according to our assertion function

	let result, expected;

	result = sum(3, 7);
	expected = 10;
	expect(result).toBe(expected);

	result = subtract(7, 3);

markodayan / example.js

Last active July 14, 2020 07:42

Creating Middleware in Express (Important Steps)

	// Will create a middleware called logger
	// middleware is a called function requiring inputs of (req,res,next) that runs with every http request (if global app middleware)
	// next MUST be called to continue on with the http request

	const logger = (req,res,next) => {
	req.hello = 'Hello World';
	console.log('Middleware ran');
	next();
	};

markodayan / database.sql

Created July 10, 2020 12:50

Express Server with PostgreSQL CRUD routes

markodayan / app.js

Created June 29, 2020 11:52

Serve Front end App (Client) from Node.js Backend

	// set static folder pointing to built client app
	app.use(express.static('client/build'));

markodayan / layout.js

Created June 24, 2020 09:05

Next.js Layout Component (Wrapping Layout around the custom App)

markodayan / _app.js

Created June 24, 2020 08:59

Next.js Custom App Component (In pages root dir to apply global styles)

	import '../styles/global.css';

	export default function App({ Component, pageProps }) {
	return <Component {...pageProps} />;
	}

markodayan / utility.module.css

Created June 21, 2020 11:34

utility class example

markodayan / _app.js

Created June 21, 2020 11:17

Next gloal styles

	import '../styles/global.css';

	export default function App({ Component, pageProps }) {
	return <Component {...pageProps} />;
	}

markodayan / commands.sh

Last active September 1, 2020 13:07

Git Version Control

	# list all commits made across different branches on the repo
	git log

	# list all branches (will also show which branch you are currently on)
	git branch

	# switch to a branch
	git checkout <existing_branch_name>

	# create new branch

markodayan / data.js

Created April 22, 2020 20:53

JS imports and exports in webpack env

	const users = [
	{ name: 'mario', premium: true },
	{ name: 'luigi', premium: false },
	{ name: 'yoshi', premium: true },
	{ name: 'toad', premium: true },
	{ name: 'peach', premium: false },
	];

	export const getPremUsers = (users) => {
	return users.filter((user) => {