keidarcy

import React, { useState } from 'react'

const TodoItem = ({ index, name, complete, removeTodo, completeTodo }) => {
  return (
    <>
      <li style={{ textDecoration: complete ? 'line-through' : '' }}>
        {name}{' '}
        <span>
          {!complete && <button onClick={() => completeTodo(index)}>finish</button>}
        </span>

keidarcy

const obj = [
	{ name: "Joe", age: 17 },
	{ name: "Bob", age: 17 },
	{ name: "Carl", age: 35 }
];

const objRes = [...new Map(obj.map((item) => [item.age, item])).values()];
const arrRes = [...new Set(obj.map((item) => item.age))]
console.log(objRes); //[{ name: "Bob", age: 17 },{ name: "Carl", age: 35 }]
console.log(arrRes);//[17, 35]

keidarcy

ES6 note

var, let, const

• var → function scope
• let, const → block scope

function say() {
    for (var i = 0; i < 5; i++ ) {
        console.log(i)

keidarcy

let data = { price: 5, quantity: 2 };
let target = null;
let total = 0;

class Dep {
	constructor() {
		this.subscribers = [];
	}
	depend() {
		if (target && !this.subscribers.includes(target)) {

keidarcy

// 4月から計算一年内のもの
<!-- ・現在の日付が4月以降だったら
→4月から現在の日付カウントする

・現在の日付が3月以前だったら
→去年の4月から現在の日付までカウントする -->

private function isAnnual($date)
    {
         $orderTime = $date->format('Y-m-d');

keidarcy

{
  "extends": [
    "airbnb",
    "plugin:prettier/recommended",
    "prettier/react",
    "plugin:node/recommended"
  ],
  "env": {
    "browser": true,
    "commonjs": true,

keidarcy

ctrl+b	prefix
	basic		session
?	Show shortcuts	s	show all sessions
:	command mode	d	Detach from session
		&	Rename session
	window		pane
c	create	%	splite left and right

keidarcy

# EditorConfig is awesome: http://EditorConfig.org

# top-most EditorConfig file
root = true

# Unix-style newlines with a newline ending every file
[*]
end_of_line = lf
insert_final_newline = true
trim_trailing_whitespace = true

keidarcy

const axios = require('axios').default;
const SlackBot = require('slackbots');

const URL = 'https://api.ce-cotoha.com/api/dev/nlp/v1/sentiment';
const COTOHA_TOKEN = process.env.COTOHA_TOKEN;
const SLACK_TOKEN = process.env.SLACK_TOKEN;
const USER_ID = process.env.USER_ID;

axios.defaults.headers.common['Authorization'] = `Bearer ${COTOHA_TOKEN}`;