score:4

Accepted answer
function onClick(event) {
  console.log(event); // => nullified object.
  console.log(event.type); // => "click"
  const eventType = event.type; // => "click"

  setTimeout(function() {
    console.log(event.type); // => null
    console.log(eventType); // => "click"
  }, 0);

  // Won't work. this.state.clickEvent will only contain null values.
  this.setState({clickEvent: event});

  // You can still export event properties.
  this.setState({eventType: event.type});
}

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