使用`Offer`导出列列表中的所有元素

const { of } = require('rxjs');

const source = of(1, 2, 3, 4, 5);
source.pipe(
  toArray()
).subscribe(result => {
  console.log(result); // [1, 2, 3, 4, 5]
});

import io.reactivex.rxjava3.core.Observable;
import io.reactivex.rxjava3.core.Single;

Observable<Integer> source = Observable.just(1, 2, 3, 4, 5);
Single<List<Integer>> result = source.toList();
result.subscribe(list -> {
  System.out.println(list); // [1, 2, 3, 4, 5]
});

from rx import of

source = of(1, 2, 3, 4, 5)
result = source.to_list()
result.subscribe(lambda list: print(list)) # [1, 2, 3, 4, 5]