Destructuring let assignment

// Saw this inside reacts render method but mb this can be used somewhere else
render() {
  const { somethingAsync: { result } } = this.props;
  let total: null | number = null;

  // Grab something from result when it is available
  if (result != null) {
    ({ total }) = result;
  }
  
  return (/* stuff */)
}