Function arrayHasEqualMapElement

lib/internal/util/comparisons.js:822–833

(array, key1, item1, b, mode, memo, comparator, start, end)

}

function arrayHasEqualMapElement(array, key1, item1, b, mode, memo, comparator, start, end) {
  for (let i = end - 1; i >= start; i--) {
    const key2 = array[i];
    if (comparator(key1, key2, mode, memo) &&
        innerDeepEqual(item1, b.get(key2), mode, memo)) {
      // Move the matching element to make sure we do not check that again.
      array[i] = array[end];
      return true;
    }
  }
  return false;
}

function mapObjectEquiv(array, a, b, mode, memo) {
  let direction = 1;