How to know if a script is running inside Unity Editor when using Device Simulator

RunMode.cs

// https://forum.unity.com/threads/how-to-know-if-a-script-is-running-inside-unity-editor-when-using-device-simulator.921827/
public static class RunMode {
  public enum ApplicationRunMode {
    Device,
    Editor,
    Simulator
  }
  public static ApplicationRunMode Current {
    get {
      #if UNITY_EDITOR
      return UnityEngine.Device.Application.isEditor && !UnityEngine.Device.Application.isMobilePlatform ? ApplicationRunMode.Editor : ApplicationRunMode.Simulator;
      #else
      return ApplicationRunMode.Device;
      #endif
    }
  }
}