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<!DOCTYPE html>
<html>
<body>
​
<h2>JavaScript</h2>
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<p>Objects can be emptied by setting the value to <b>null</b>.</p>
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<p id="demo"></p>
​
<script>
var person = {firstName:"John", lastName:"Doe", age:50, eyeColor:"blue"};
person = null;
document.getElementById("demo").innerHTML = typeof person;
</script>
​
</body>
​
<!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_datatypes_null by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:39:29 GMT -->
</html> 
​
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