Function mapObjectEquiv

lib/internal/util/comparisons.js:835–876

(array, a, b, mode, memo)

}

function mapObjectEquiv(array, a, b, mode, memo) {
  let direction = 1;
  let start = 0;
  let end = array.length - 1;
  const comparator = mode !== kLoose ? objectComparisonStart : innerDeepEqual;
  const extraChecks = mode === kLoose || array.length !== a.size;

  for (const { 0: key1, 1: item1 } of a) {
    if (extraChecks && (typeof key1 !== 'object' || key1 === null)) {
      if (b.has(key1)) {
        if (mode !== kLoose || innerDeepEqual(item1, b.get(key1), mode, memo)) {
          continue;
        }
      } else if (mode !== kLoose) {
        return false;
      }
    }

    let innerStart = start;
    if (direction === 1) {
      const key2 = array[start];
      if (comparator(key1, key2, mode, memo) && innerDeepEqual(item1, b.get(key2), mode, memo)) {
        start += 1;
        continue;
      }
      if (start === end) {
        return false;
      }
      direction = -1;
      innerStart += 1;
    }
    const key2 = array[end];
    if ((!comparator(key1, key2, mode, memo) || !innerDeepEqual(item1, b.get(key2), mode, memo))) {
      direction = 1;
      if (!arrayHasEqualMapElement(array, key1, item1, b, mode, memo, comparator, innerStart, end)) {
        return false;
      }
    }
    end -= 1;
  }
  return true;
}

function mapEquiv(a, b, mode, memo) {
  let array;