| Boolean type has only two values true and false. These constant values are case-sensitive. |
| Initializing Boolean type variables |
| var present = true |
| var is JavaScript keyword, present is a variable name, true is value assigned to present variable, variable present is of Boolean type because the value assigned to present is of boolean type. |
| In the example given below we have used keyword document.write (message ) which is used to printthe message or variable value given with it. |
| Example 1 |
| <html>
<head> </head> <body> <script type=”text/javascript”> var present = true var attend = false document.write(“Student Status in School : “+present); document.write(“<br>Class Attended : “+attend); </script > </body> </html> |
| Understanding the program |
| present & absent are two variables of Boolean type having values true and false respectively. <BR> is a html tag used to insert a new line. |
| Output of this program |
| Student Status in School : true |
| Class Attended : false |