keidarcy

document.addEventListener('DOMContentLoaded', function(){

  const list = document.querySelector('#book-list ul');
  const forms = document.forms;

  // delete books
  list.addEventListener('click', (e) => {
    if(e.target.className == 'delete'){
      const li = e.target.parentElement;
      li.parentNode.removeChild(li);

keidarcy

  const zipInput = document.getElementById("checkout_shipping_address_zip")
  const numberInput = document.getElementById("checkout_shipping_address_phone")
  const submitButton = document.getElementById('continue_button')
  const submitText = submitButton.children[0]

  let zipError = document.createElement('p')
  zipError.setAttribute('id', 'error-for-zip')
  zipError.setAttribute('class', 'field__message field__message--error')
  zipError.innerHTML = "日本の有効な郵便番号を入力してください"

keidarcy

<?php // /app/Http/Middleware/Cors.php

namespace App\Http\Middleware;

use Closure;

class Cors {
    public function handle($request, Closure $next)
    {
        return $next($request)

keidarcy

CSS Selectors Cheatsheet

Element selectors

Element -- selects all h2 elements on the page

h2 {
    foo: bar;

keidarcy

import React, { useCallback } from 'react'
import { DropZone, MediaCard } from '@shopify/polaris'

const ImageUploadDropZone = ({ files, setFiles }) => {
  const handleDropZoneDrop = useCallback(
    (_dropFiles) => setFiles([..._dropFiles]),
    []
  )

  const validImageTypes = ['image/gif', 'image/jpeg', 'image/png']

keidarcy

const p1 = new Promise((resolve, reject) => setTimeout(resolve(1), 200))

const p2 = new Promise((resolve, reject) => setTimeout(reject('error'), 300))

const p3 = new Promise((resolve, reject) => setTimeout(resolve(3), 4000))

Promise.all([p1, p2, p3]).then((res) => console.log(res)).catch(e => console.log(e))

Promise.allSettled([p1, p2, p3]).then((res) => console.log(res)).catch(e => console.log(e))

keidarcy

OS

$ cat /etc/system-release
Amazon Linux release 2 (Karoo)

set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory

keidarcy

Products with Search Query

query{
    products(first: 100,  query: "tag:vans AND title:AUTHENTIC") {
        edges {
            node {
                id
                title
 tags

keidarcy

import React, { useEffect, useRef, useState } from 'react';
import logo from './logo.svg';
import './App.css';

interface Options {
  enable?: boolean;
  target?: GlobalEventHandlers;
}
const useEventListener = (
  targetEvent: keyof GlobalEventHandlersEventMap,

keidarcy

const fibonacci = (num) => {
  if (Number.isNaN(+num)) {
    return 'not a number';
  }

  let result = 0;
  let tmp = 0;
  let fiArr = [1, 1];

  for (let i = 1; i < num; i++) {