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Instance of and type of :- JavaScript

November 13, 2019 - JavaScript

The instanceof operator returns a boolean value.
The typeof operator return string value.
The instanceof operator is used to check the type of an object at run time.
The typeof operator is used to get the data type of its operand.

Code:-

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script>
var ar = ["1", "2", "3"];
function fun1()
{
alert(typeof ar);
}
function fun2()
{
var br = ["1", "2", "3"];
var st = "Merin jojeriojdfoifdsg";
alert("is String? : " + (ar instanceof Array).toString());
alert("is Array? : " + (st instanceof String).toString());
}
</script>
</head>
<body>
<button onclick="fun1();">typeof</button>
<button onclick="fun2();">instanceof</button>
</body>
</html>

Instance of and type of :- JavaScript

Instance of and type of :- JavaScript

Reviewed by Network security on November 13, 2019 Rating: 5

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