Hexadecimal

To create a hexadecimal literal, you make the first two characters 0x or 0X. The hexadecimal digits are 0 through 9, and A through F. Letters may be in uppercase or lowercase.

 
<!DOCTYPE html>
<html>
<head>
    <title>Number Example</title>
    <script type="text/javascript">
          
       var hexNum = 0xA; 
              
       document.writeln(hexNum); //10 
    </script>

</head>
<body>
  
</body>
</html>
Click to view the demo

The hexadecimal numbers are converted to decimal numbers in all arithmetic operations.

 
<!DOCTYPE html>
<html>
<head>
    <title>Number Example</title>
    <script type="text/javascript">
          
       var hexNum = 0xA; 
              
       document.writeln(hexNum); //10 
       
       var aNum = 123; 
       
       document.writeln(hexNum + aNum); //133       
    </script>

</head>
<body>
  
</body>
</html>
Click to view the demo
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Data Types:
  1. JavaScript Data Types
  2. typeof Operator
  3. The Undefined Type
  4. null Type
  5. null vs undefined
  6. Boolean Type
  7. Boolean() casting function
  8. The Literials of Number Type
  9. Octal Integer
  10. Hexadecimal
  11. Floating-Point Values
  12. Value range
  13. NaN
  14. Number Conversions:Number(), parseInt() and parseFloat()
  15. Number() function
  16. parseInt()
  17. parseFloat()
  18. The String Type
  19. String Literals and Escapes
  20. Get the String Length
  21. Converting to a String with toString() method
  22. Convert Number to String with radix
  23. Convert to String with String() casting function