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onSelectedShowdateChangeHandler() {
  this.setState(
    { selectedShowdate: event.target.value },
    this.getShowtimeList
Hi guys, I'm having a "event" is deprecated error here, not so sure what I should replace it with. Thank you so much
Event handler callbacks will be given an event object as an argument when invoked. Just add that argument to your function:
onSelectedShowdateChangeHandler(event) {
    // Function body
It's up to you, but some prefer to just name it e or similar to avoid clashing with the "global" event object.
onSelectedShowdateChangeHandler(myEvent) {
  this.setState(
    { selectedShowdate: myEvent.target.value },
    this.getShowtimeList
I'm surprised you're still using it, unless you're using legacy code. event was deprecated years ago.
                Ohh, what does "deprecated" mean tho? Sorry for the stupid questions I'm actually not very familiar with Javascript. But yeap, it is legacy codes from my company, written many many years ago.
– Jerome
                Nov 29, 2021 at 3:13