TryCF Gist

trycf-gist.cfm

<cfscript>
expressions = ["some constant value","a different constant value","third constant value","4th value","5th value","none"];
expression = expressions[randRange(1,expressions.Len())];
writeDump({"expression":expression});

switch (expression){
    case "some constant value": // value can be dynamic on Railo/Lucee
         writeOutput('<h3>statements executed if expression = "some constant value"</h3>');
    break; // exit switch statement
    case "a different constant value":
        writeOutput('<h3>statements executed if expression = "a different constant value"<br>
         if there is no break, then processing continues to execute statements until a break is encountered...<br>
         ... but subsequent case evaluations are not made. A switch is basically a GOTO mechanism, which does a...
         single GOTO the first matching case. It is NOT a series of if/elseif/else statements</h3>');     
    case "third constant value":
        writeOutput('<h3>statements executed if expression = "a different constant value" or "third constant value"</h3>');
    break;
    case "4th value":
    case "5th value":
        writeOutput('<h3>statements executed if expression is one of "4th value" or "5th value"</h3>');
    break;
    default:
        writeOutput('<h3>statements executed if no case was fulfilled (or if the last fulfilled case did not have a break)</h3>');
    break;
}

</cfscript>