从JSON URL抓取时Javascript不存储值

Question

我正在尝试从JSON URL中获取值并将其实现为HTML行。这是我的代码的一部分。

for (var i = 0; i < professorElementNode.length; i++) {


  var fullName = professorsArray[i].first + professorsArray[i].last;
  console.log(fullName);
  var parentNode = professorElementNode[i].parentNode;
  var childElement = document.createElement('a');
  childElement.innerText = "hey"
  parentNode.appendChild(childElement);
  parentNode.appendChild(childElement);
  childElement.href = "http://example.com";
  var profrating = [];


  var profUrl = 'https://search.mtvnservices.com/typeahead/suggest/?solrformat=true&rows=20&q=' + professorsArray[i].first + '+' + professorsArray[i].last + '+AND+schoolid_s%3A1262&defType=edismax&qf=teacherfirstname_t%5E2000+teacherlastname_t%5E2000+teacherfullname_t%5E2000+autosuggest&bf=pow(total_number_of_ratings_i%2C2.1)&sort=total_number_of_ratings_i+desc&siteName=rmp&rows=20&start=0&fl=pk_id+teacherfirstname_t+teacherlastname_t+total_number_of_ratings_i+averageratingscore_rf+schoolid_s&fq=';
  Get(profUrl, function(err, data) {
    profrating[i] = data.response.docs.map(doc => doc.averageratingscore_rf);
    var pkID = data.response.docs.map(doc => doc.pk_id);
    var ratingCount = data.response.docs.map(doc => doc.total_number_of_ratings_i);


    childElement.innerText = profrating[i];

    console.log(fullName, profrating[i]);

  });

}

和here是插入html的页面以及控制台日志的屏幕截图。我知道ajax是异步的，但是解决方法是什么？