I creted some npm libraries with chunks of code I use in my projects. They are all open source and available on npm.

@amatiasq/scheduler

When you need something to hapen N seconds after you invoked it.

const scheduler = new Scheduler(
  60 * 1000, // one minute
  () => console.log('hello')
)

// init countdown, will print 'hello' after 60 seconds
schedule.start();

// the scheduler will never have time to finish
// it won't print 'hello' ever
setInterval(
  () => scheduler.restart(), // restart countdown
  59 * 1000 // every 59 seconds
)

@amatiasq/client-storage

Wrapper for localStorage and sessionStorage with JSON serilization and versioning.

const prefs = new ClientStorage<{ mode: 'dark' | 'light' }>('user.preferences', {
  version: 0,
  default: { mode: 'dark' }
});

scad-ts

A TypeScript library to generate SCAD code. 3D printing from TypeScript and files versioned with git 🧑‍🍳👌

const lock = createLockShape(ROTATION)
const axis = cylinder(INFINITE, 1, { center: true })

const axisPosition = [
  PILLAR_OFFSET + WALL,
  INTERIOR.y / 2 - HOOK.y - HOOK_GAP - length + adjustement,
] as const

const locks = difference(lock, axis).translate(axisPosition)
const all = union(...cuadrants(locks))

@amatiasq/emmiter

A simple event emitter library.

const emitter = new Emitter()
emitter.subscribe(() => console.log('event'))
emitter() // prints 'event'

@amatiasq/peer-connection

WebRTC made simple. Still not simple enough to fit example here.

@amatiasq/keyboard

Simple class to track keyboard pressed keys.

const keyboard = new KeyboardController();

if (keyboard.isPressed(KeyCode.Space)) {
  console.log('Space key is pressed');
}

keyboard.onKeyCodeDown(KeyCode.A, () => console.log('DOWN'));
keyboard.onKeyCodeUp(KeyCode.A, () => console.log('UP'));

@amatiasq/dom

Tagged template to generate DOM. Browser only 😬

const el = dom`<div>hello ${user.name}!</div>`

@amatiasq/json-socket

WebSocket with type validation, JSON serialization and automatic reconnection.

It's composed by two smaller libraries:

• @amatiasq/resilient-socket
• @amatiasq/nice-socket

type Input = LoginRequest | Message | LogoutRequest;
type Output = AuthOk | IncomingMessage | Error;

const socket = new JsonSocket<Input, Output>('wss:sockethost.com');

// incoming is of type AuthOk, IncomingMessage or Error
socket.onMessage(incoming => {})

socket.send({ user: 'alice', password: '1234' });