<!DOCTYPE html>
<html>
<head>
  <title>Loop</title>
</head>
<body>
  <h2>for...in Loop</h2>
  
  <script>
    
    const person = { name: "John", age: 30, job: "Developer" };
     for (let key in person) {
         document.write(key + ":  " + person[key], `<br>`);
     } 
    
  </script>
</body>
</html>
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