How to return the data type of variable in JavaScript ?

How to get the native type of a value in JavaScript ?

Last Updated : 15 Feb, 2023

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:

How to return the data type of variable in JavaScript ?

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