660 Chapter 12: ActionScript Dictionary
Description
Statement; creates a branching structure for ActionScript statements. Like the if action, the
switch action tests a condition and executes statements if the condition returns a value of true.
Example
In the following example, if the number parameter evaluates to 1, the trace() action that follows
case 1 executes, if the number parameter evaluates to 2, the trace() action that follows case 2
executes, and so on. If no
case expression matches the number parameter, the trace() action
that follows the
default keyword executes.
switch (number) {
case 1:
trace ("case 1 tested true");
break;
case 2:
trace ("case 2 tested true");
break;
case 3:
trace ("case 3 tested true");
break;
default:
trace ("no case tested true")
}
In the following example, there isn’t a break in the first case group so if the number is 1, both A
and B are sent to the Output panel:
switch (number) {
case 1:
trace ("A");
case 2:
trace ("B");
break;
default:
trace ("D")
}
See also
=== (strict equality)
, break, case, default, if
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