I have problem with "jQuery template" when using Json file

I have problem with "jQuery template" when using Json file. when i use below code, i got no errors however it doesn't work.

The problem is solved when I define the contents of a data Json as a variable. But whenever I try to use the Json file, it doesn't work

I was very excited about this but didn't find anything. Please guide me.

  <script type="text/javascript">
    $(function() {
      jQuery.getJSON("js/data.json", function(myData) {
        $("#ourTemplate").tmpl(myData).appendTo("#tableContent");

      });


    })
  </script>
  <script id="ourTemplate" type="text/x-jquery-tmpl">
    <tr>
      <td>${username}</td>
      <td>${name}</td>
      <td>${skills}</td>
      <td>${age}</td>
    </tr>
  </script>

<!DOCTYPE html>
<html lang="fa" dir="ltr">
<title>jQuery templates</title>

<head>

  <script src="https://code.jquery.com/jquery-3.4.1.min.js" charset="utf-8"></script>
  <script src="http://ajax.microsoft.com/ajax/jquery.templates/beta1/jquery.tmpl.min.js" charset="utf-8"></script>


</head>

<body>
  <table border="1">
    <thead>
      <th>username</th>
      <th>name</th>
      <th>skills</th>
      <th>age</th>
    </thead>
    <tbody id="tableContent">

    </tbody>
  </table>
</body>

</html>

Json file :

[{
    name: "milad",
    username: "mldv404",
    skills: "php , javascript , css , jQuery",
    age: 24,
  },
  {
    name: "hamid",
    username: "hamidJ",
    skills: "Mysql , javascript , css , jQuery",
    age: 25,
  },
  {
    name: "hossein",
    username: "hosseindavari",
    skills: "java , simpless , document , jQuery",
    age: 34,
  },
  {
    name: "davood",
    username: "davoodSun",
    skills: "visial Basic , dot net7 , c++ , jQuery",
    age: 24,
  },
  {
    name: "zahra",
    username: "sunMedia",
    skills: "python , hibernate , AJax , PostgerSql",
    age: 24,
  },
  {
    name: "mohsen",
    username: "msnv",
    skills: "vbScript , php , javascript , jQuery",
    age: 24,
  },
  {
    name: "mahdi",
    username: "mhdi23",
    skills: "php , javascript , css , jQuery",
    age: 24,
  },
];

Solution

The problem is solved when I define the contents of a data Json as a variable

That's because your "JSON" isn't actually JSON; it's just a regular JavaScript object. See here for more info: https://stackoverflow.com/a/3975890/7290573

Change the contents of your JSON file to the following and it will work (notice the quotes around the key names):

[
    {
        "name": "milad",
        "username": "mldv404",
        "skills": "php , javascript , css , jQuery",
        "age": 24
    },
    {
        "name": "hamid",
        "username": "hamidJ",
        "skills": "Mysql , javascript , css , jQuery",
        "age": 25
    },
    {
        "name": "hossein",
        "username": "hosseindavari",
        "skills": "java , simpless , document , jQuery",
        "age": 34
    },
    {
        "name": "davood",
        "username": "davoodSun",
        "skills": "visial Basic , dot net7 , c++ , jQuery",
        "age": 24
    },
    {
        "name": "zahra",
        "username": "sunMedia",
        "skills": "python , hibernate , AJax , PostgerSql",
        "age": 24
    },
    {
        "name": "mohsen",
        "username": "msnv",
        "skills": "vbScript , php , javascript , jQuery",
        "age": 24
    },
    {
        "name": "mahdi",
        "username": "mhdi23",
        "skills": "php , javascript , css , jQuery",
        "age": 24
    }
]