why to use event.persist
//Without event.persist() ,
//React will make the first event value as null when second event is fired.
//How to use?
const handleFilterChange = (event) => {
event.persist();
setFilters(currentFilters => (
produce(currentFilters, draftFilter => {
draftFilter[event.target.name] = event.target.value;
})
))
};