我无法在JSON中推送对象，但console.log（）可以正常工作

Question

我无法在JSON中推送对象，但是console.log（）可以正常工作。 console.log（）显示添加了一个对象，但是没有出现json string？

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var results = [{
  "id": 0,
  "name": "Green",
  "category": "project",
  "year": 2008,
  "description": "my description",
  "comments": [{
    "rating": 5,
    "comment": "Perfect",
    "author": "Sandra",
    "date": "2012-10-16T17:57:28.556094Z"
  }, {
    "rating": 4,
    "comment": "Cool",
    "author": "Milena",
    "date": "2014-09-05T17:57:28.556094Z"
  }, {
    "rating": 3,
    "comment": "No bad",
    "author": "Milan",
    "date": "2015-02-13T17:57:28.556094Z"
  }, {
    "rating": 4,
    "comment": "Good job",
    "author": "Toma",
    "date": "2013-12-02T17:57:28.556094Z"
  }, {
    "rating": 2,
    "comment": "OK",
    "author": "Aleksandar",
    "date": "2011-12-02T17:57:28.556094Z"
  }]
}];

document.getElementById('show').innerHTML = results[0].comments[1].author;

document.getElementById("sendComment").onclick = function() {

  var hg = {
    "rating": 1,
    "comment": "Hello",
    "author": "X",
    "date": "2014-09"
  }
  results[0].comments.push(hg);
  console.log(results[0].comments);
}

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<div id='show'></div>
<button id='sendComment'>Send</button>

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Answer 1

results [0] .comments是对象数组，而不是JSON字符串。一切正常。新对象被添加到数组中。