React + Mobx: 'this' is null when trying to update store

Question

Just getting started with Mobx & React and having trouble getting the store to update. I get error when clicking the button, which should update the \'me\' property:

<

Answer 1

I don't know mobx but onClick={store.change_me} is a problem because you are using a method on a class as a function (without this). You will have to use use something like:

onClick={event => store.changeMe(event)}

otherwise the binding to store is lost.

Also possible but less readable:

onClick={store.changeMe.bind(store)}