<h1 id="countdown" data-y="2025" data-m="07" data-d="11"></h1>

function countdown() {
    let Y = document.querySelector('#countdown').getAttribute('data-Y');
    let m = Math.floor(document.querySelector('#countdown').getAttribute('data-m')) -1;
    let d = document.querySelector('#countdown').getAttribute('data-d');
    let strCountDown = '';
    let nowDate = new Date();
    let countdownDate = new Date(Y,m,d,0,0,0);
    let distance = countdownDate.getTime() - nowDate.getTime();
    const day = Math.floor(distance / 1000 / 60 / 60 / 24);
    const hour = Math.floor(distance / 1000 / 60 / 60) % 24;
    const minute = Math.floor(distance / 1000 / 60) % 60;
    const second = Math.floor(distance / 1000) % 60;

    strCountDown = `${day}日 ${hour}:${minute}:${second}`;

    view(strCountDown);
}

setInterval(countdown, 1000);

function view(str) {
    document.querySelector('#countdown').textContent = str;
}

// 干支の計算方法は？
// 十二支は、西暦を１２で割り、同様に余りを求めます。 
let eto = ['申', '酉', '戌', '亥', '子', '丑', '寅', '卯', '辰', '巳', '午', '未'];
document.querySelector('.input').addEventListener('input', function () {
    let index = isNaN(Number(document.querySelector('.input').value)) ? -1 : (Number(document.querySelector('.input').value) % 12);
    document.querySelector('#res').innerText = index === -1 ? '' : eto[index];
});

let circle = document.getElementById("circle");
document.body.addEventListener("mousemove",function(e){
    let a = e.currentTarget.getBoundingClientRect();
    let x = e.clientX - a.left;
    let y = e.clientY - a.top; 
    circle.style.top = `${y}px`;
    circle.style.left = `${x}px`;
    circle.style.transform = `translate(50px,50px)`;
})

        const ctx = document.getElementById('myChart');
        let data = [12, 19, 3, 19, 2, 3];
        new Chart(ctx, {
            type: 'bar',
            data: {
                labels: ['demo1', 'demo2', 'demo3', 'demo4', 'demo5', 'demo6'],
                datasets: [{
                    label: '# of Votes',
                    data: data,
                    borderWidth: 1
                }]
            },
            options: {
                scales: {
                    x: {
                        beginAtZero: true
                    }
                }
            }
        });

document.querySelector(".btn").addEventListener("click", () => {
    let p = [document.querySelector("[name='name']").value, document.querySelector("[name='text']").value];
    [...document.querySelectorAll(".put")].forEach((elm, index) => {
        elm.innerText = p[index];
    });
    document.querySelector("#box2").style.display = "none";
    document.querySelector("#data").insertAdjacentHTML("beforeend", `<button class="btn2" type="button">非同期送信</button>`);
    document.querySelector(".btn2").addEventListener("click", async () => {
        //submit code
        let url = "./submit.php";
        let data = (() => {
            return ([...document.querySelectorAll(".put")].map((elm, index) => {
                return "test" + index + "=" + elm.innerText;
            })).join("&");
        })();
        const options = {
            method: 'POST',
            headers: {
                'Content-Type': 'application/x-www-form-urlencoded',
                "Content-Length": data.length,
                'Accept': 'application/json'
            },
            body: data //JSON.stringify(data)
        };
        await fetch(url, options).then(response =>
            response.json()
        ).then(resultdata => {
            document.getElementById("view").insertAdjacentHTML("beforeend", resultdata.test0 + "," + resultdata.test1);
        }).catch(error => {
            console.log(error);
        });
    });
});


function imgchg(imagename){
    document.body.setAttribute("style","background-image: url(./assets/images/" + imagename + ".jpg.webp");
}

let kwh =  document.querySelectorAll(".img_area > table > tbody > tr > td");
if(kwh){let s = 0;
    for(let i = 0;i < kwh.length ; i++){
        if(kwh[i].innerText.match(/(kWh)/)){
          s = s + (Number(String(kwh[i].innerText).replace("kWh",""))*100);
          console.log(kwh[i].innerText);
        }
    }
    let r = 0;
    s = Math.floor(s /100);
    if(s >11){
        if(s < 120){
            r = ((s -11) * 20) + 411;
        }
        if(s < 300){
            r = ((s - 120) * 27) + 411 + 2220;
        }
        if(s >= 300){
            r = ((s - 300) * 30) + 411 + 2220 + 4858;
        }
    }
    console.log("合計金額="  + String(s) + "kWh  " + String(r) + "円");
}

let useKendata = [
    {'no':'01','name':'北海道'},
    {'no':'02','name':'青森県'},
    {'no':'03','name':'岩手県'},
    {'no':'04','name':'宮城県'},
    {'no':'05','name':'秋田県'},
    {'no':'06','name':'山形県'},
    {'no':'07','name':'福島県'},
    {'no':'08','name':'茨城県'},
    {'no':'09','name':'栃木県'},
    {'no':'10','name':'群馬県'},
    {'no':'11','name':'埼玉県'},
    {'no':'12','name':'千葉県'},
    {'no':'13','name':'東京都'},
    {'no':'14','name':'神奈川県'},
    {'no':'15','name':'新潟県'},
    {'no':'16','name':'富山県'},
    {'no':'17','name':'石川県'},
    {'no':'18','name':'福井県'},
    {'no':'19','name':'山梨県'},
    {'no':'20','name':'長野県'},
    {'no':'21','name':'岐阜県'},
    {'no':'22','name':'静岡県'},
    {'no':'23','name':'愛知県'},
    {'no':'24','name':'三重県'},
    {'no':'25','name':'滋賀県'},
    {'no':'26','name':'京都府'},
    {'no':'27','name':'大阪府'},
    {'no':'28','name':'兵庫県'},
    {'no':'29','name':'奈良県'},
    {'no':'30','name':'和歌山県'},
    {'no':'31','name':'鳥取県'},
    {'no':'32','name':'島根県'},
    {'no':'33','name':'岡山県'},
    {'no':'34','name':'広島県'},
    {'no':'35','name':'山口県'},
    {'no':'36','name':'徳島県'},
    {'no':'37','name':'香川県'},
    {'no':'38','name':'愛媛県'},
    {'no':'39','name':'高知県'},
    {'no':'40','name':'福岡県'},
    {'no':'41','name':'佐賀県'},
    {'no':'42','name':'長崎県'},
    {'no':'43','name':'熊本県'},
    {'no':'44','name':'大分県'},
    {'no':'45','name':'宮崎県'},
    {'no':'46','name':'鹿児島県'},
    {'no':'47','name':'沖縄県'},
];
document.getElementById("ken").insertAdjacentHTML('afterbegin',(function(ken){
    let str = '';
    for (const key in ken) {
        str+= '<option value=' + ken[key].no + '>' + ken[key].name +'</option>';
    }
    return str;
}(useKendata)));

<script>
	fetch("./assets/js/ken47.json").then(response => response.json()).then((data)=>{
		let ken = [];
		ken.push('<div class="list-group">');
		for (const key in data) {
			ken.push("<a  class='list-group-item list-group-item-action' href='https://hazard.yahoo.co.jp/article/covid19" + data[key].roman + "' target='_"+ data[key].roman +"'>" + data[key].name +":::https://hazard.yahoo.co.jp/article/covid19" + data[key].roman + "</a>");
		}
		ken.push("</div>");
		document.getElementById("covid19-link-list").innerHTML = ken.join("")
	});
</script>

{
	"1": {
		"name": "北海道",
		"roman": "hokkaido"
	},
	"2": {
		"name": "青森",
		"roman": "aomori"
	},
	"3": {
		"name": "岩手",
		"roman": "iwate"
	},
	"4": {
		"name": "宮城",
		"roman": "miyagi"
	},
	"5": {
		"name": "秋田",
		"roman": "akita"
	},
	"6": {
		"name": "山形",
		"roman": "yamagata"
	},
	"7": {
		"name": "福島",
		"roman": "fukushima"
	},
	"8": {
		"name": "茨城",
		"roman": "ibaraki"
	},
	"9": {
		"name": "栃木",
		"roman": "tochigi"
	},
	"10": {
		"name": "群馬",
		"roman": "gunma"
	},
	"11": {
		"name": "埼玉",
		"roman": "saitama"
	},
	"12": {
		"name": "千葉",
		"roman": "chiba"
	},
	"13": {
		"name": "東京",
		"roman": "tokyo"
	},
	"14": {
		"name": "神奈川",
		"roman": "kanagawa"
	},
	"15": {
		"name": "新潟",
		"roman": "niigata"
	},
	"16": {
		"name": "富山",
		"roman": "toyama"
	},
	"17": {
		"name": "石川",
		"roman": "ishikawa"
	},
	"18": {
		"name": "福井",
		"roman": "fukui"
	},
	"19": {
		"name": "山梨",
		"roman": "yamanashi"
	},
	"20": {
		"name": "長野",
		"roman": "nagano"
	},
	"21": {
		"name": "岐阜",
		"roman": "gifu"
	},
	"22": {
		"name": "静岡",
		"roman": "shizuoka"
	},
	"23": {
		"name": "愛知",
		"roman": "aichi"
	},
	"24": {
		"name": "三重",
		"roman": "mie"
	},
	"25": {
		"name": "滋賀",
		"roman": "shiga"
	},
	"26": {
		"name": "京都",
		"roman": "kyoto"
	},
	"27": {
		"name": "大阪",
		"roman": "osaka"
	},
	"28": {
		"name": "兵庫",
		"roman": "hyogo"
	},
	"29": {
		"name": "奈良",
		"roman": "nara"
	},
	"30": {
		"name": "和歌山",
		"roman": "wakayama"
	},
	"31": {
		"name": "鳥取",
		"roman": "tottori"
	},
	"32": {
		"name": "島根",
		"roman": "shimane"
	},
	"33": {
		"name": "岡山",
		"roman": "okayama"
	},
	"34": {
		"name": "広島",
		"roman": "hiroshima"
	},
	"35": {
		"name": "山口",
		"roman": "yamaguchi"
	},
	"36": {
		"name": "徳島",
		"roman": "tokushima"
	},
	"37": {
		"name": "香川",
		"roman": "kagawa"
	},
	"38": {
		"name": "愛媛",
		"roman": "ehime"
	},
	"39": {
		"name": "高知",
		"roman": "kochi"
	},
	"40": {
		"name": "福岡",
		"roman": "fukuoka"
	},
	"41": {
		"name": "佐賀",
		"roman": "saga"
	},
	"42": {
		"name": "長崎",
		"roman": "nagasaki"
	},
	"43": {
		"name": "熊本",
		"roman": "kumamoto"
	},
	"44": {
		"name": "大分",
		"roman": "oita"
	},
	"45": {
		"name": "宮崎",
		"roman": "miyazaki"
	},
	"46": {
		"name": "鹿児島",
		"roman": "kagoshima"
	},
	"47": {
		"name": "沖縄",
		"roman": "okinawa"
	}
}

let btn1 = function (e) {
	//btn2
	console.clear();
	console.log("btn1");
	let p = document.getElementsByTagName("p");
	let style1 = [["backgroundColor", "fontSize", "color"], ["#000000", "20px", "#ffffff"]];
	for (const key in p) {
		if (p.hasOwnProperty(key)) {
			const element = p[key];
			for (var i = 0; i < style1[0].length; i++) {
				element.style[style1[0][i]] = style1[1][i];
			}
		}
	}
};
let btn2 = function (e) {
	//btn2
	console.clear();
	console.log("btn2");
	let p = document.getElementsByTagName("p");
	let style2 = {
		backgroundColor: "#ffffff",
		fontSize: "20px",
		color: "#000000"
	};
	for (const key in p) {
		if (p.hasOwnProperty(key)) {
			const element = p[key];
			for (const key2 in style2) {
				element.style[key2] = style2[key2];
			}
		}
	}
};
document.body.style.backgroundColor = "#0b222b";
document.getElementById("btn1").addEventListener("click",btn1);
document.getElementById("btn2").addEventListener("click",btn2);

function sosu(){
    let sosuno = [2];
    for(let i=3;i<=9999;i++){
        let flg = true;
        if(i%2===0){
            continue;
        }
        for(let ii=2;ii<i;ii++){
            if(ii%2===0){
                continue;
            }
            if(i%ii===0){
                flg = false;
                break;
            }
        }
        if(flg){
            sosuno.push(i);
        }
    }
    document.getElementById("my-textarea").value = sosuno.join(',');
}
document.getElementById("btn").addEventListener("click",sosu);