Function isPartialStrictEqual

lib/internal/util/comparisons.js:1061–1063

(val1, val2)

    return detectCycles(val1, val2, skipPrototype ? kStrictWithoutPrototypes : kStrict);
  },
  isPartialStrictEqual(val1, val2) {
    return detectCycles(val1, val2, kPartial);
  },
};