time until JOI

TwitterにJOI開始までの残り時間を表示します

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name        time until JOI
// @description TwitterにJOI開始までの残り時間を表示します
// @version     1.0
// @author      euglenese
// @match       https://twitter.com/*
// @namespace https://greasyfork.org/users/201019
// ==/UserScript==

function len2(text){ // become 2 digits
	return ("00" + text).slice(-2)
}

var item = $("<li>");
var item_a = $("<a>");
item_a.attr("href", "https://joi2019-yo.contest.atcoder.jp/");
item_a.attr("target", "_blank");
item_a.css("font-size", "15px");
item.append(item_a);
var item_a_span = $("<span>");
item_a_span.addClass("text");
item_a.append(item_a_span);
$("#global-actions").append(item);
var text, date, hour, min, sec;
time_update();
setInterval(time_update, 100);

function time_update(){
	text = "";
	date = new Date();
	hour = date.getHours();
	min = date.getMinutes();
	sec = date.getSeconds();
	if( date.getFullYear() > 2018 ||
	   	date.getDate() > 9 ||
	   	hour >= 16){
		text = "終了しました";
	}else if(hour >= 13){
		text = "開催中です!";
	}else{
		text = "あと " + len2(12 - hour) + ":" + len2(59 - min) + ":" + len2(59 - sec);
	}
	item_a_span.html(text)
}