Preact: Support for componentDidCatch

[valotas]

Error handling with preact/react is anything but pleasant at the moment. componentDidCatch should make the process a little bit easier.

[marcelalburg]

+1

a nice example why we need this:

https://codeburst.io/catching-exceptions-using-higher-order-components-in-react-16-b8a401853a10

[developit]

Agreed, I would like to see this supported in Preact.

[adamsilverstein]

I took a first pass in https://github.com/developit/preact/pull/880. This will catch errors in render, but not those triggered by a click handler for example.

[adamsilverstein]

Use a component like this to test:

export default class Test extends Component {

    componentDidCatch( error, errorInfo ) {
        console.log( error, errorInfo )
    }

    render() {
        throw new Error( 'I crashed!' );
        return;
    }
}

[developit]

note: for visibility there's a PR here as well - #819

[marvinhagemeister]

Closing, componentDidCatch is now available in master :+1: