Function loop

src/loop.js:21–27

(model, cmd)

};

export const loop = (model, cmd) => {
  if (process.env.NODE_ENV === 'development') {
    throwInvariant(isCmd(cmd), 'Given cmd is not an Cmd instance.');
  }

  return [model, cmd];
};

export const liftState = (state) => {
  return isLoop(state) ? state : loop(state, Cmd.none);