holiday_jp JavaScript 
Get holidays in Japan.
Install
$ npm install @holiday-jp/holiday_jpUsage
In HTML
<script src="./your/own/path/holiday_jp.js"></script>
<script>
var holidays = holiday_jp.between(new Date('2010-09-14'), new Date('2010-09-21'));
console.log(holidays[0]['name']); // 敬老の日
</script>In Node
var holiday_jp = require('@holiday-jp/holiday_jp');
var holidays = holiday_jp.between(new Date('2010-09-14'), new Date('2010-09-21'));
console.log(holidays[0]['name']); // 敬老の日If you want to use specific years only
var holiday_jp = require('@holiday-jp/holiday_jp/lib/no_autoload_holidays');
var holidays_2010 = require('@holiday-jp/holiday_jp/lib/holidays_every_year/2010');
var holidays_2011 = require('@holiday-jp/holiday_jp/lib/holidays_every_year/2011');
holiday_jp.setHolidays([holidays_2010, holidays_2011]);
var holidays = holiday_jp.between(new Date('2010-09-14'), new Date('2010-09-21'));
console.log(holidays[0]['name']); // 敬老の日In TypeScript
import * as holiday_jp from '@holiday-jp/holiday_jp';
const holidays = holiday_jp.between(new Date('2010-09-14'), new Date('2010-09-21'));
console.log(holidays[0]['name']); // 敬老の日