@jasmith79/sequable/dist/esm/zip.mjs

Library functions for working with generators

import { toIterator } from "./sequable.mjs";
/**
 * Yields tuples of the results of the two given Iterables, Iterators, or
 * generator functions.
 *
 * @param a The first sequence to combine.
 * @param b The second sequence to combine.
 */
export function* zip(a, b) {
    const xs = toIterator(a);
    const ys = toIterator(b);
    let x = xs.next();
    let y = ys.next();
    while (!x.done && !y.done) {
        yield [x.value, y.value];
        x = xs.next();
        y = ys.next();
    }
    if (x.value !== undefined && y.value !== undefined)
        return [x.value, y.value];
}