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<!DOCTYPE html>
<html>
<body>
​
<h2>JavaScript Object Properties</h2>
​
<p>You can delete object properties.</p>
​
<p id="demo"></p>
​
<script>
var person = {
  firstname:"John",
  lastname:"Doe",
  age:50,
  eyecolor:"blue"
};
​
delete person.age;
document.getElementById("demo").innerHTML =
person.firstname + " is " + person.age + " years old.";
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_object_properties4 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:28:15 GMT -->
</html>
​
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