React - uncaught TypeError: Cannot read property 'setState' of undefined

Question

I am getting the following error

Uncaught TypeError: Cannot read property \'setState\' of undefined

even after binding delta in

Answer 1

You dont have to bind anything, Just use Arrow functions like this:

class Counter extends React.Component {
    constructor(props) {
        super(props);

        this.state = {
            count: 1
        };

    }
    //ARROW FUNCTION
    delta = () => {
        this.setState({
            count: this.state.count++
        });
    }

    render() {
        return (
            

                
{this.state.count}
                +
            
        );
    }
}