The WMLScript is weakly typed language. This means that there is no type-checking at the compile- or the run-time and no variable types are been declared explicitly . Internally, these data types are supported by the WML:

The programmer need not specify the type of any variable; The WMLScript will automatically attempt to convert between different types as and when needed. the other point to note here is that the WMLScript is not an object-oriented (like Java or C++). Therefore, it is impossible to create our own data types (user-defined data types) programmatically.

The WMLScript supports the variety of operators that do support the value assignment operations, the arithmetic operations, lthe ogical operations, the string operations, the comparison operations, and finally the array operations.

The operators and the expressions supported by an WMLScript are identical virtually to those of a JavaScript programming the language so they are not discussed here. Java do support the number of control statements for handling the branching within the programs. These includes the if-else statement, for loop statement, while loop statement, break statement, and the continue statements.