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<!DOCTYPE html>
<html>
<body>
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<h2>JavaScript Data Types</h2>
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<p>JavaScript has dynamic types. This means that the same variable can be used to hold different data types:</p>
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<p id="demo"></p>
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<script>
var x;         // Now x is undefined
x = 5;         // Now x is a Number
x = "John";      // Now x is a String
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document.getElementById("demo").innerHTML = x;
</script>
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</body>
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<!-- Mirrored from www.w3schools.com/js/tryit.asp?filename=tryjs_datatypes_dynamic by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:39:28 GMT -->
</html>
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​
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