I have multiple classes which I need to dynamically instantiate at run-time, based on object definition data stored in a database.  Rather than the arduos approach of using a large and redundant switch-case statement to deal with each and every class type, is there a way to store the classes in, say, an array of classes? (my terminology might not be quite correct there)   Then instantiate any given class type by indexing into the array with the appropriate index (which would be stored in the database as part of the object definition data).  

For example
, instead of...
switch ( whichclass )
{
    case '1':
        new lz.class1();
        break;

    case '2':
        new lz.class2();
        break;

    case '3':
        new lz.class3();
        break;
}

Is there a way to do...
new lz.classes[whichclass]();





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