Run results for: Lodash.isEqual vs JSON.stringify Equality Comparison for deep object

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
_.isEqual	2494569.5 Ops/sec
JSON.stringify	622105.4 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.15/lodash.min.js"></script>

Script Preparation code:

window.foo = {
  "general": {
    "patientMaritalStatus": {
      "status": "MARITAL_STATUS_P_SINGLE",
      "note": "Test note"
    },
    "patientWorkStatus": {
      "status": "WORK_STATUS_P_RETIRED",
      "note": "Another note"
    }
  },
  "substanceAbuse": {
    "alcoholUse": {
      "usedFrequency": "USED_FREQUENCY_P_CURRENT_SOME_DAYS",
      "ageAtStart": 40
    }
  }
};
window.bar = {
  "general": {
    "patientMaritalStatus": {
      "status": "MARITAL_STATUS_P_MARRIED",
      "note": "Test note"
    },
    "patientWorkStatus": {
      "note": "Updated note"
    },
    "newField": "Added field"
  },
  "substanceAbuse": {
    "alcoholUse": {
      "usedFrequency": "USED_FREQUENCY_P_NEVER",
      "ageAtStart": 40
    }
  },
  "miscellaneous": {
    "children": {
      "answer": "THREE_STATE_ANSWER_P_YES"
    },
    "militaryService": {
      "answer": "THREE_STATE_ANSWER_P_NO"
    },
    "legalCases": {
      "answer": "THREE_STATE_ANSWER_P_NO"
    },
    "otherSocialHistory": {
      "answer": "THREE_STATE_ANSWER_P_NO"
    },
    "physicalImpairments": {
      "answer": "THREE_STATE_ANSWER_P_YES"
    },
    "socialOrFinancialConcerns": {
      "answer": "THREE_STATE_ANSWER_P_NO"
    },
    "subSectionStatus": "SUB_SECTION_STATUS_P_VALID"
  },
  "familyHistory": [
    {
      "familyHistoryItem": {
        "historyItemId": "66abea5c9806da604760f933",
        "name": "Cancer (Colon)",
        "icdCode": "",
        "altSystem": ""
      },
      "familyMembers": [
        {
          "relation": "FAMILY_MEMBER_RELATION_P_UNCLE",
          "ageAtOnset": 50
        }
      ],
      "subSectionStatus": "SUB_SECTION_STATUS_P_VALID"
    }
  ]
}
;

Tests:

_.isEqual
_.isEqual(window.foo, window.bar)
JSON.stringify
JSON.stringify(window.foo) === JSON.stringify(window.bar);

Run results for: Lodash.isEqual vs JSON.stringify Equality Comparison for deep object

Test on isEqual performance

_.isEqual

JSON.stringify