浅谈JavaScript find 方法不支持IE的问题

<script type="text/javascript">
  var arrayList = new Array();
  arrayList.push(1);
  arrayList.push(2);
  arrayList.push(3);
  arrayList.push(4);
 
  arrayList.find(function (val) {
    if (val == 4) {
      console.log('This is a test');
    }
  });
</script>