jickoo

// String
enum Family {
  Mom = 'M',
  Daddy = 'D',
  Brother = 'B',
}

const indexOf = Object.values(Sizes).indexOf('M' as unknown as Family);

const key = Object.keys(Family)[indexOf];

jickoo

import java.time.Instant
import java.time.LocalDateTime
import java.time.ZoneOffset
import java.time.format.DateTimeFormatter

val epochTime = 1689734454000L
val now = System.currentTimeMillis()

val ldt = LocalDateTime.ofInstant(
    Instant.ofEpochMilli(now),

jickoo

#!/bin/bash
#==============================================================================
# GW-Kit

# 	@author : (origin) yunsang.choi([email protected])
#       @author : (forked) jinkwon([email protected])
#	@src : (origin) https://gist.github.com/gists/3115022
#	@src : (forked) https://github.com/Jinkwon/naver-gw-kit/

#-------

jickoo

function WindowAddEventListener(props: WindowAddEventListenerProps) {
    const {handleFullScreen} = props;
    const orientationType = useOrientationFullScreen(handleFullScreen);

    useEffect(() => {
        console.debug('orientation type', orientationType);
    }, [orientationType]);
}

-----

jickoo

// Source: https://github.com/jserz/js_piece/blob/master/DOM/ParentNode/append()/append().md
(function (arr) {
    arr.forEach(function (item) {
        if (item.hasOwnProperty('append')) {
            return;
        }
        Object.defineProperty(item, 'append', {
            configurable: true,

jickoo

import { useEffect, useRef } from 'react';
import { useRecoilState } from 'recoil';
import { someAtom } from './recoilstates/someState';

const yourCustomHook = () => {
  const [someState, setSomeState] = useRecoilState(someAtom);
  const latestSomeState = useRef(someState);

  useEffect(()=> {
    latestSomeState.current = someState;

jickoo

        const changeTimeFormat = (seconds: number) => {
            var hour = parseInt('' + seconds/3600);
            var min = parseInt('' + (seconds%3600)/60);
            var sec = Math.floor(seconds%60);
            return `${hour}:${min}:${sec}`;
        }

jickoo

import React, { useEffect, useRef } from 'react';

/**
 * Use setInterval with Hooks in a declarative way.
 *
 * @see https://stackoverflow.com/a/59274004/3723993
 * @see https://overreacted.io/making-setinterval-declarative-with-react-hooks/
 */
export function useInterval(
  callback: React.EffectCallback,

jickoo

Stream<Integer> stream = Stream.of(1,2,3,4);

Map<Boolean, List<Integer>> patition = stream.collect(Collectors.partitioningBy(s -> (s % 2) == 0));

List<Integer> oddList = patition.get(false);
System.out.println(oddList);

List<Integer> evenList = patition.get(true);
System.out.println(evenList);

jickoo

class LocalDateTimeSorting {
  
	public static void main (String... args) {
    
		List<Model> list = new ArrayList<>();

		Model m = new Model();
		Map<String, Object> map = new HashMap<>();

		map.put("datetime", "2019-07-08 18:10:10.0");