seokju-na

const port = new SerialPort('COM1', {
  baudRate: 9600
});

const receipt = await renderToBuffer(
  <ThermalPrint type="EPSON" width={42} characterSet="KOREA">
    <ThermalPrint.Txt size={{ width: 1, height: 1 }}>10,000원</ThermalPrint.Txt>
    <ThermalPrint.Txt>결제 완료</ThermalPrint.Txt>
    <ThermalPrint.Br />
    <ThermalPrint.Line type="single" />

seokju-na

Keybase proof

I hereby claim:

• I am seokju-na on github.
• I am seokjume (https://keybase.io/seokjume) on keybase.
• I have a public key ASD8Q29ezkb6WCiQ4al7t2n4qP51HCDRn-LAUmFFYn1zWwo

To claim this, I am signing this object:

seokju-na

/*
 * https://overreacted.io/algebraic-effects-for-the-rest-of-us/
 */

private val effectsStack = ThreadLocal<EffectsFrame>()

fun <T> perform(effectKey: Any): T {
    var frame = effectsStack.get()
    while (frame != null) {
        @Suppress("UNCHECKED_CAST")

seokju-na

#!/bin/bash
adb kill-server
adb start-server
echo "Connect device with usb cable"
adb wait-for-device
ANDROID_IP=`adb shell ifconfig wlan0 | awk '/inet addr/ {gsub("addr:", "", $2); print $2}'`
adb tcpip 5555
adb connect $ANDROID_IP:5555

seokju-na

{
  "username": "seokju-na",
  "displayName": "Seokju Na",
  "email": "seokju.me@gmail.com",
  "avatarImageUrl": "...",
  "profileUrl": "https://github.com/seokju-na"
}

seokju-na

import 'zone.js/dist/zone';

const loadZone = Zone.current.fork({
  name: "seokju zone",
  onScheduleTask(parent, current, target, task) {
    console.log('Schedule  ' + task.source, task);
    parent.scheduleTask(target, task);
  },
  onInvokeTask(parent, current, target, task) {
    console.log('Invoking ' + task.source, task);

seokju-na

const chalkAnimation = require('chalk-animation');
const { blue, gray, cyan, white, bold } = require('chalk');
const { prompt } = require('node-ask');
const parse = require('csv-parse/lib/sync');
const fs = require('fs');
const { shuffle, sample } = require('lodash');
const center = require('center-align');

const fileData = fs.readFileSync('./codelab.csv', 'utf8');
const candidates = parse(fileData).slice(2);

seokju-na

import Event from './Event';

export type ReducerHandler<E extends Event, State> = (state: State, event: E) => State;

type EventType<E> = E extends Event ? E['type'] : never;
type ExtractEvent<E extends Event, Type> = E extends { type: Type } ? E : never;

export default interface Reducer<E extends Event, State> {
  initialState?: State;
  ensureFirstEventTypeToBe?: EventType<E>;

seokju-na

const obj = { a: 'b' };
const num = '123';

obj.toString();
num.toString(); // ???

seokju-na

interface Props {
  title: string;
  durationTime: number;
  className?: string;
}

function ScrollDownButton({ durationTime, title, className }: Props) {
  const { animate, cancel } = useScrollDownAnimationBehavior();
  const handleClick = useCallback(
    () => {