Comments (2)
Hi @zveroboy! Thank you for your feedback!
I think you can use streams for such tasks.
import { AsyncStream } from 'itertools-ts';
const fetch100ItemsOrLess = async (response) => await AsyncStream.of(response)
.flatMap(response => response.data)
.limit(100)
.toArray();
const result = await fetch100ItemsOrLess(asyncIterable);
from itertools-ts.
@Smoren First of all, thank you for a wonderful library.
I guess it's pretty hard to implement a FP version of it where functions are curried and parameters are inversed using TS, right?
An example:
const takeWhile = _.curry(function* takeWhile(predicateFn, iterable) {
for (const item of iterable) {
if (predicateFn(item)) {
yield item;
} else {
break;
}
}
});
const limitAsync = _.curry(async function* limitAsync(count, iterable) {
if (count < 0) {
throw new TypeError(`Limit must be ≥ 0. Got ${count}`);
}
let i = 0;
for await (const datum of iterable) {
if (i >= count) {
return;
}
yield datum;
++i;
}
});
// …
const asyncIterable = httpClient.fetchSomePaginatedDataIterable();
const fetch100ItemsOrLess = _.compose(
toArrayAsync,
limitAsync(100),
flatMapAsync(response => response.data),
);
const result = await fetch100ItemsOrLess(asyncIterable);
from itertools-ts.
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