ｈっろｐ - 経済統計練習帳

var point = new Array();
 var x = new Array();
 var artist = new Array();
 var num = new Array();
 
 var delta;
 
function sample() {
 
function getURL(URL) {
 return new Promise(function (resolve, reject) {
 var req = new XMLHttpRequest();
 req.open('GET', URL, true);
 req.onload = function () {
 if (req.status === 200) {
 resolve(req.responseText);
 } else {
 reject(new Error(req.statusText));
 }
 };
 req.onerror = function () {
 reject(new Error(req.statusText));
 };
 req.send();
 });
}
 
 
 
var URL = "http://httpbin.org/get";
getURL(URL).then(function onFulfilled(value){
 alert(value);
}).catch(function onRejected(error){
 console.error(error);
});
 
}