Page 158 - DCAP512_WAP_AND_WML

WAP & WML

Notes Self Assessment

Fill in the blanks:
6. With ………………………., the wireless device can do some of the processing and
computation.

7. WMLScript is a ………………………. language and is very similar to JavaScript.
8. WMLScript code is always placed in a file separate from the ……………………….
9. One common use of WMLScript is to ………………………. form data.

11.3 Using WML Script Functions

FunctionDeclaration:
externopt function Identifier (FormalParameterListopt) Block ;opt
FormalParameterList:
Identifier

FormalParameterList, Identifier
You can use the optional extern keyword to specify that a function is to be externally accessible.
External functions can be called from outside the compilation unit in which they are defined.

Identifier is the name specified for the function.
The optional FormalParameterList is a list of argument names separated by commas.
Block is the body of the function that is executed when the function is called and the parameters
have been initialized by the passed arguments.
Function Example
<wml>
<card> title=” Do Square”>

<p>
<do type =”accept” label =”SquareIt”>
<go href =”squareit.wml#doSquare(‘8’)” />
</do>

$test
</p>
</card>
<card title=”Results”>

<p>
The result is “$test”
</p>
</card>

</wml>

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