eiel

function isLeapYear(year) {
    if (year % 400 === 0) {
        return true;
    }
    if (year % 100 === 0) {
        return false;
    }
    if (year % 4 === 0) {
        return true;
    }

eiel

{
  "plugins": [["@babel/plugin-proposal-decorators", { "version": "2021-12" }]]
}

eiel

swagger: '2.0'
info:
  title: ChatWork API
  version: v1
# the domain of the service
host: api.chatwork.com
# array of all schemes that your API supports
schemes:
  - https
# will be prefixed to all paths

eiel

<?php

namespace RadioControllerCar;

/* ラジコンの抽象クラス */

interface CarInterface
{
    public function send($message);
}

eiel

function sleep(n) {
  return new Promise(resolve => setTimeout(resolve, n));
}

(async () => {
  console.log(Date.now());
  await sleep(1000);
  console.log(Date.now());
})();

eiel

const { series, src, dest }  = require('gulp');
const debug = require('gulp-debug');

function hoge1 () {
  return src('src')
    .pipe(debug({title: 'hoge1'}))
    .pipe(dest('hoge'));
}
function hoge2 () {
  return src('src')

eiel

# >> を *
# >>= を bind
# return を self.new
# mplus を +
# mzero を self.zero
#
# に見立てて Maybe モナド書いてみた
# bind に渡す block で Maybe と書きたくないので第二引数に型情報を付加してみた。
class Monad
  def *(m)

eiel

eiel

eiel

const { parseSchema } = require('json-schema-to-flow-type')
const schema = require('./opeanapi.json')
const flow = parseSchema(schema, {'http://json-schema.org/draft-04/schema': 'scheama.json'})
console.log(`// @flow\n\n${flow}`)