I'm trying to learn ReactJS following this tutorial: Tutorial
I'm new to the programming language so i'm clueless as to what to do now.
When I try to add the "Fetchemployee.tsx" file, I get an error at the this.state method.
(TS) Property 'state' does not exist on type 'FetchPeriod'
This is the code:
import * as React from 'react';
import { RouteComponentProps } from 'react-router';
import { Link, NavLink } from 'react-router-dom';
interface FetchPeriodDataState {
periodList: PeriodData[];
loading: boolean;
}
export class FetchPeriod extends React.Component<RouteComponentProps<{}>, FetchPeriodDataState> {
constructor(props) {
super(props);
this.state = { periodList: [], loading: true };
fetch('api/Period/Index')
.then(response => response.json() as Promise<PeriodData[]>)
.then(data => {
this.setState({ periodList: data, loading: false });
});
// This binding is necessary to make "this" work in the callback
this.handleDelete = this.handleDelete.bind(this);
this.handleEdit = this.handleEdit.bind(this);
}
And then later on I have the PeriodData class:
export class PeriodData {
PeriodId: number = 0;
Description: string = "";
PeriodOwner: string = "";
PeriodName: string = "";}
The this.state and this.setState methods are giving the errors in the title, and I can't seem to find a fix.
