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fires when a tree collection is modified

change: (id?: string | number, status?: string, updatedItem?: object) => void;


  • id: string | number - the id of an item
  • status: string - the status of the operation:"add", "update", "remove"
  • updatedItem: object - the object of an updated item

Example"change", function(id,status,updatedItem){
console.log("An item is updated");