Get div's offsetTop positions in React

Question

I am trying to implement a List view in React. What I am trying to achieve is that to store the list headers informations and register the components and register the scroll ev

Answer 1

A better solution with ref to avoid findDOMNode that is discouraged.

...
onScroll() {
    let offsetTop  = this.instance.getBoundingClientRect().top;
}
...
render() {
...
 this.instance = el } />
...