Learning WML, and WMLScript

Other Statements

Variable declarations with var are considered statements in WMLScript; so they can appear anywhere that a statement can. You don’t have to stick them all at the top of a function as you do in some languages. For example:

foo ( );
var x = 0105;
bar (x);

Sometimes, you want a statement that doesn’t do anything. You can do this with an empty block, {}, but you can also simply use a single semicolon, which is a statement that does nothing. For example:

while (test_value (++x)) {
    /* Empty block. */
}

or:

while (test_value (++x))
    ;

Writing loops like this, with all of the work crammed into the loop header, is often regarded as bad style; it can make your code hard to read.