ajax jquery promise

ajax-promise.js

function getAjaxPromise (url) {
  return new Promise(function (resolve, reject) {
    var xhttp = new XMLHttpRequest();
    xhttp.open('GET', url, true);
    xhttp.onload = function () {
      if (xhttp.status == 200) {
        resolve(JSON.parse(xhttp.response));
      } else {
        reject(xhttp.statusText);
      }
    };
    xhttp.onerror = function () {
      reject(xhttp.statusText);
    };
    xhttp.send();
  });
}

var promise = get("data/tweets.json");
promise.then(function(tweets) {
  console.log(tweets);
}).catch(function (error) {
  console.log(error);
});