@reactivex/ix-esnext-esm/asynciterable/maxby.js

The Interactive Extensions for JavaScript

import { extremaBy } from './_extremaby.js';
import { equalityComparerAsync } from '../util/comparer.js';
/**
 * Returns the elements in an async-iterable sequence with the maximum key value.
 *
 * @template TSource The type of the elements in the source sequence.
 * @template TKey The type of the key computed for each element in the source sequence.
 * @param {AsyncIterable<TSource>} source An async-iterable sequence to get the maximum elements for.
 * @param {ExtremaOptions<TSource, TKey>} [options] The options which include an optional comparer and abort signal.
 * @returns {Promise<TSource[]>} A promise containing a list of zero or more elements that have a maximum key value.
 */
export function maxBy(source, options) {
    const { ['comparer']: comparer = equalityComparerAsync, ['selector']: selector, ['signal']: signal, } = options || {};
    return extremaBy(source, selector, comparer, signal);
}

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