ProstoChel92

const cut = str => {
	if(str.length > 83) {
  	return str.slice(0, 83) + '...';
  } else {
  	return str;
  }
}
result ={
	title: cut(arr[0].title),
  nick: cut(arr[0].authors.nick)
}

.block {
    display: flex;
}
.block__item {
    /*стили*/
   flex: 1 1 33.33%;
}