Scalajs-react-independent/src/main/scala/com/example/playscalajsreact/model/Data.scala

package com.example.playscalajsreact.model

import monocle.macros.Lenses
import japgolly.scalajs.react.Reusability
import japgolly.scalajs.react.Reusable

@Lenses
final case class Data(int: Int, str: String)

object Data {
  implicit val reusability: Reusability[Data] = Reusability.derive

  // Here we wrap the lenses in Reusable.byRef so that React can compare setState/modState functions and know when its
  // it's got the same lens as a previous render. This is required to make [Method 1] work with Reusability
  object reusableLens {
    val int = Reusable.byRef(Data.int)
    val str = Reusable.byRef(Data.str)
  }
}