function loadContent() {
    let domain = window.location.href + "/percent";
    let xhttp = new XMLHttpRequest();
    let ele = document.getElementById('number');
    let temp = document.getElementById('temp');
    xhttp.onreadystatechange = function() {
        if (this.readyState == 4 && this.status == 200) {
            let obj = JSON.parse(this.responseText);
            ele.innerHTML = obj.percent;
            if (obj.temp[1] == "0") {
                temp.innerHTML = obj.temp[0] + "°C"
            } else {
                temp.innerHTML = obj.temp[0] + "°C / " + obj.temp[1] + "°C";
            }
        }
    };
    xhttp.open("GET", domain, true);
    xhttp.send();
}

setInterval(loadContent, 4000)
loadContent()