Mouse wheel events in Reactjs

Question

How do you go about getting mouse wheel events in reactjs?

I have tried onWheel

  render: function() {
    return <div onWheel = {this.wheel} >
       < /div>;
  },

and I have tried onScroll

  render: function() {
    return <div onScroll = {this.wheel} >
       < /div>;
  },

But neither of these events are picked up. See the fiddle below :

https://jsfiddle.net/812jnppf/2/

Answer 1

First, your div is 0 height, so you don't scroll on it. You don't have to bind this as it is a class (and not an es6 react component). Just do a call to the function with the event as parameter on onWheel event:

https://jsfiddle.net/812jnppf/9/

render: function() {

   return <div style={{height:300, width:300}} onWheel = {(e) => this.wheel(e)} >      < /div>;
},

Of course, you have to clean code to style your div with a var or in css.

EDIT : I set it onWheel and not on onScroll (witch doesn't exist I guess ? confirm it if you know). I saw a SO post about adding scroll event to your component easilly : https://stackoverflow.com/a/29726000/4099279