如何从JavaScript中的JSON数组中检索值

Question

{
  'status': 200,
  'val': '1766666',
  'val1': '66K',
  'val2': '1233',
  'val3': '68.9',
  'val4': '120',
  'val5': '7.7',
  'years': [{
    'year': '2019',
    'month': '1',
    'val6': '111',
    'val7': '3333',
    'val8': '1212121'
  }, {
    'year': '2019',
    'month': '2',
    'val6': '134',
    'val7': '5387',
    'val8': '1519550'
  }]
}

<script>
    var response = "{{res.years|escapejs}}";
    for(var i in response)
    {
        var x = response[i].year;
        alert(x);
    }
  </script>

我希望所有名为“ years”的对象的值