ReactJS: Control a child state from the child and the parent

Question

I have a rather simple problem and I\'m not sure how to solve it with React\'s one way data flow.

Say you have a link in the parent that shows a modal

In the mod

Answer 1

You could pass a callback as a prop to the child component:

// In the parent


// In the modal

  ×
  ...

Then when you click the close button on the child, it will call the function of the parent