total-order/iter

import _iterator from './_iterator.js';

/**
 * Compile a function that compares two iterables whose yielded elements are
 * compared using the given comparison function.
 *
 * @param {Function} compare
 * @return {Function}
 */
const iterable = (compare) => {
    /**
     * Compares two iterables. If one of the iterators is a prefix of the
     * other, the one that is a prefix is considered smaller.
     *
     * @param {Iterable} A
     * @param {Iterable} B
     * @return {number}
     */
    const increasing = (A, B) =>
        _iterator(compare, A[Symbol.iterator](), B[Symbol.iterator]());

    return increasing;
};

export default iterable;