Dynamically adding cases to a switch

Question

I need to dynamically add cases to a switch. I want the user to be able to add items and every item needs it\'s own switch case.

Answer 1

You can use object with callback functions instead:

var callbacks = {};

function add(_case, fn) {
   callbacks[_case] = callbacks[_case] || [];
   callbacks[_case].push(fn);
}

function pseudoSwitch(value) {
   if (callbacks[value]) {
      callbacks[value].forEach(function(fn) {
          fn();
      });
   }
}

and you can add new entry using:

add('something', function() {
   // case for something
});