JavaScript RangeError – Radix must be an integer

Last Updated : 24 Jan, 2023

This JavaScript exception radix must be an integer at least 2 and no greater than 36 occurs if the radix parameter of the Number.prototype.toString() or the BigInt.prototype.toString() method is passed and is not in range between 2 and 36.

Output message:

RangeError: invalid argument (Edge)
RangeError: radix must be an integer at least 2
            and no greater than 36 (Firefox)
RangeError: toString() radix argument must be 
            between 2 and 36 (Chrome)

Error Type:

RangeError

Cause of the error: When the optional radix parameter of the Number.prototype.toString() or the BigInt.prototype.toString() method is specified and not between 2 and 36, A radix that is greater than 10 starts using alphabet characters as digits which can not be larger than 36(Because alphabet has only 26 letters).

Example 1: In this example, the parameter passed is 2, So the error has not occurred.

HTML

<body style="text-align: center;"> 
    <h1 style="color: green;"> 
        GeeksforGeeks 
    </h1> 
  
    <p> 
        JavaScript RangeError 
        Radix must be an integer 
    </p> 
  
    <button onclick="Geeks();"> 
        click here 
    </button> 
    <p id="GFG_DOWN"></p> 
  
    <script> 
        var el_down = document.getElementById("GFG_DOWN"); 
        function Geeks() { 
            try { 
                (42).toString(2); 
                el_down.innerHTML =  
                  "'Radix must be an" +  
                  " integer' error has not occurred"; 
            } catch (e) { 
                el_down.innerHTML =  
                  "'Radix must be an" +  
                  " integer' error has occurred"; 
            } 
        } 
    </script> 
</body>

Output:

JavaScript RangeError - Radix must be an integer

Example 2: In this example, the parameter passed is 0, So the error has occurred.

HTML

<body style="text-align: center;"> 
    <h1 style="color: green;"> 
        GeeksforGeeks 
    </h1> 
  
    <p> 
        JavaScript RangeError 
        Radix must be an integer 
    </p> 
  
    <button onclick="Geeks();"> 
        click here 
    </button> 
  
    <p id="GFG_DOWN"></p> 
  
    <script> 
        var el_down = document.getElementById("GFG_DOWN"); 
        function Geeks() { 
            try { 
                (42).toString(0); 
                el_down.innerHTML =  
                  "'Radix must be an" +  
                  " integer' error has not occurred"; 
            } catch (e) { 
                el_down.innerHTML =  
                  "'Radix must be an" + 
                  " integer' error has occurred"; 
            } 
        } 
    </script> 
</body>