Find an element in an array recursively

Question

I have an array of objects. Every object in the array has an id and an item property that is an array containing other object. I need to be able to find an element in an arr

Answer 1

You should replace

  getSubMenuItem(subMenuItems[i].items, id);

with

  var found = getSubMenuItem(subMenuItems[i].items, id);
  if (found) return found;

in order to return the element when it is found.

And be careful with the name of the properties, javascript is case sensitive, so you must also replace

  if (subMenuItems[i].Id == id) {

with

  if (subMenuItems[i].id == id) {

Demonstration

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Final (cleaned) code :

var getSubMenuItem = function (subMenuItems, id) {
    if (subMenuItems) {
        for (var i = 0; i < subMenuItems.length; i++) {
            if (subMenuItems[i].id == id) {
                return subMenuItems[i];
            }
            var found = getSubMenuItem(subMenuItems[i].items, id);
            if (found) return found;
        }
    }
};