matches.as

package {
    public function matches(source : *, ...values):void {
        const len : uint = values.length;
        
        // Walk through the supplied values and look for a match.
        for (var i : uint = 0; i < len; i++) {
        	if (source === values[i]) {
        		return true;
        	}
        }
        
        // No match.
        return false;
    }
}

usage.as

var name : String = "Jonny";
var found : Boolean = matches(name, "Bertie", "Billy", "Jonny", "Frankie");