The value for each key is a function (or false value) that is used as the handler instead of the final argument to the method. The keys are strings in the same form as the events argument with space-separated event type names and optional namespaces. on(), the events argument is a plain object.
Practice social distancing, wear a face cover, wash your hands and stay home. Protect yourself and your family and stop the spread. COVID-19 cases, hospitalizations, and deaths across the county are at an all time high.