反应 fullCalendar，在 eventReceive 函数中到达 this.props

Question

I want to set one of my parent's attributes with my event's start time, but I cant reach this.props from inside the function(info) method. How could I reach tha method I want to use?

eventReceive={function (info) {
                this.props.onChangeStartDate(info.start);
              }}

onChangeStartDate is one of my parent's function which sets the starting date of an appointment in the parent component and I want to give the event's data which I just added in the calendar as a parameter to that function.

I got the following error:

Cannot read property 'onChangeAppointment' of undefined

Thanks for your help.

Answer 1

The following will solve your error.

eventReceive={(info) => {
    this.props.onChangeStartDate(info.start);
}}

Where () => {} is an arrow function commonly used. See documentation .

The reason the error is occuring is because you losing the context of this inside the scope of the function.