Need barebone code example how to catch and respond to mouse wheel, in functional widget

[MichaelLev]

I develop on EXB 1.13 for 3D web apps.

I succeeded to respond to mouse wheel by responding to extent changes, but I want to know how to catch and respond to mouse wheel changes directly.

[JeffreyThompson2 · Accepted solution]

https://developers.arcgis.com/javascript/latest/api-reference/esri-views-View.html#event-mouse-wheel

view.on("mouse-wheel", function(event){
 // deltaY value is positive when wheel is scrolled up
 // and it is negative when wheel is scrolled down.
 console.log(event.deltaY);
});