text: 
  export const getComments = (state) => state.comments; 
  
  // getLastComment
  export const getLastComment = (state) => (postId) =>  {
      if( state.lastComments.length > 0){
          const comment = state.lastComments.filter(comment => comment.postId === postId)[0]
          if(comment){
              return comment;
          }
       }
  
       return '';
  }