Function isDeepEqual

lib/internal/util/comparisons.js:1055–1057

(val1, val2)

module.exports = {
  isDeepEqual(val1, val2) {
    return detectCycles(val1, val2, kLoose);
  },
  isDeepStrictEqual(val1, val2, skipPrototype) {
    return detectCycles(val1, val2, skipPrototype ? kStrictWithoutPrototypes : kStrict);
  },