JavaScript variables can store any type of value. The JavaScript typeof operator can be used to find out the native type of value.
It returns a string value indicating the type of the value.
Syntax:
typeof(value)
Possible output values of typeof:
| Type | Result |
| undefined | “undefined” |
| null | “object” |
| boolean | “boolean” |
| number | “number” |
| string | “string” |
| symbol | “symbol” |
| function | “function” |
| object | “object” |
Example:
HTML
<!DOCTYPE html> <html>
<body>
<h2>Function returns native type of the value</h2>
<strong>Output: </strong><br />
<div id="output"></div>
<script>
document.getElementById("output").innerHTML =
typeof 98 + " " + typeof "geeksforgeeks" + " " + typeof null;
</script>
</body>
</html>
|
Output: