Fix:
Change type to React.KeyboardEvent:
onKeyUp(event: React.KeyboardEvent<object>)
Error:
Property 'keyCode' does not exist on type 'FormEvent<object>'.
This code triggers the error:
onKeyUp(event: React.FormEvent<object>) {
event.preventDefault();
if (event.keyCode === 13) {
}
}
Fixed:
onKeyUp(event: React.KeyboardEvent<object>) {
event.preventDefault();
if (event.keyCode === 13) {
}
}