Outline
The delete keyword entirely removes a property from an object. The use of delete is discouraged because it can lead to fatal errors in an application by changing the data model.
Things to keep in mind:
- You can check whether or not an object has a property by calling the
hasOwnProperty(prop)method on the object. deletewill returntrueif it successfully deleted a property. It was also return true if you try to delete a property that already does not exist.- You cannot use
deleteto delete an entire object.