code: function (tId, partialTree) {
              if (tId === void 0) { tId = ''; }
              if (partialTree === void 0) { partialTree = tree; }
              if (!tId) {
                  return false;
              }
              var found = false;
              partialTree.some(function (treeItem, i) {
                  if (treeItem[id] === tId) {
                      partialTree.splice(i, 1);
                      found = true;
                      return true;
                  }
                  found = treeItem[children] ? deleteTreeItem(tId, treeItem[children]) : false;
                  if (found && treeItem[children].length === 0) {
                      delete treeItem[children];
                      delete treeItem[opts.isOpen];
                  }
                  return found;
              });
              return found;
          }
docs: Recursively delete a tree item and all its children