aureooms/js-array

export function zip(iterables, out) {
    const len = iterables.length;

    if (len === 0) {
        return out;
    }

    let n = iterables[0].length;

    for (let i = 0; i < len; ++i) {
        const tmp = iterables[i].length;

        if (tmp < n) {
            n = tmp;
        }
    }

    for (let j = 0; j < n; ++j) {
        const tuple = [];

        for (let i = 0; i < len; ++i) {
            tuple.push(iterables[i][j]);
        }

        out.push(tuple);
    }

    return out;
}