leegeunhyeok

console.log('Hello, world!')

leegeunhyeok

<button id="btn-1" class="blue-default">
    Google
    <div class="ripple-area"></div>
</button>

<button id="btn-2" class="blue-text">
    Google
    <div class="ripple-area"></div>
</button>

leegeunhyeok

const fs = require('fs')

// Log file name, EOL (Different by platform)
console['config'] = { file: 'log.txt', eol: require('os').EOL }
console['_log'] = console.log // Original console.log function to console._log
console.log = function () { // substitution
  let args = (arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments)).join(' ')
  fs.appendFileSync(console.config['file'], args + console.config['eol']) // save
  console._log(args) // print
}

leegeunhyeok

# Reference: https://gist.github.com/tsl0922/d79fc1f8097dde660b34

# If text color issue in tmux terminal, type this commend
# alias tmux="TERM=screen-256color-bce tmux"

set-option -g prefix C-a
unbind-key C-a
bind-key C-a send-prefix
set -g base-index 1

leegeunhyeok

#!/bin/bash

# [Oh My Zsh] Would you like to check for updates?
# Type Y to update oh-my-zsh: Y
# Upgrading Oh My Zsh
# Cannot pull with rebase: You have unstaged changes.
# Please commit or stash them.
# There was an error updating. Try again later?
#
# [Set permission]

leegeunhyeok

/*
* TC39 Proposal : https://github.com/tc39/proposal-optional-chaining
*/

Object.prototype.optionalChain = function (...ops) {
  let curr = this
  for (let op of ops) {
    if (curr[op] == null) {
      return
    }

leegeunhyeok

/*
* Spread syntax trick 1
* Rest parameter
*/

const sum = (acc, ...nums) => {
  for (let num of nums) {
    acc += num
  }
  return acc

leegeunhyeok

/*
* Spread syntax trick 2
* Immutable data pattern
*/

const a = {
  name: 'Tom',
  age: 10
}

leegeunhyeok

/*
* Spread syntax trick 3
* Optional spreading
*/

const available = true

const obj = {
  user: 'James',
  age: 16,

leegeunhyeok

// 알림 구독
function subscribe () {
  const applicationServerKey = urlB64ToUint8Array(appServerPublicKey);
  swRegist.pushManager.subscribe({
    userVisibleOnly: true,
    applicationServerKey: applicationServerKey
  })
  .then(subscription => {
    console.log('User is subscribed.');
    updateSubscription(subscription);