Benchmark: Lodash isEqual and JSON.Stringify

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

//1 level deep
window.left1 = {
        "userSessionReport": {
            "aggregated": {
                "items": { "usersSessions": 1159, "uniqueUsers": 580 }
            },
            "items": [
                { "dateTime": 1551195309885, "dateTimeStr": "2019-02-26T15:35:09Z", "usersSessions": 20, "uniqueUsers": 15 },
                { "dateTime": 1551195609885, "dateTimeStr": "2019-02-26T15:40:09Z", "usersSessions": 87, "uniqueUsers": 46 },
                { "dateTime": 1551195909885, "dateTimeStr": "2019-02-26T15:45:09Z", "usersSessions": 88, "uniqueUsers": 80 },
                { "dateTime": 1551196209885, "dateTimeStr": "2019-02-26T15:50:09Z", "usersSessions": 16, "uniqueUsers": 7 },
                { "dateTime": 1551196509885, "dateTimeStr": "2019-02-26T15:55:09Z", "usersSessions": 74, "uniqueUsers": 71 },
                { "dateTime": 1551196809885, "dateTimeStr": "2019-02-26T16:00:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551197109885, "dateTimeStr": "2019-02-26T16:05:09Z", "usersSessions": 67, "uniqueUsers": 8 },
                { "dateTime": 1551197409885, "dateTimeStr": "2019-02-26T16:10:09Z", "usersSessions": 66, "uniqueUsers": 50 },
                { "dateTime": 1551197709885, "dateTimeStr": "2019-02-26T16:15:09Z", "usersSessions": 17, "uniqueUsers": 10 },
                { "dateTime": 1551198009885, "dateTimeStr": "2019-02-26T16:20:09Z", "usersSessions": 3, "uniqueUsers": 1 },
                { "dateTime": 1551198309885, "dateTimeStr": "2019-02-26T16:25:09Z", "usersSessions": 68, "uniqueUsers": 3 },
                { "dateTime": 1551198609885, "dateTimeStr": "2019-02-26T16:30:09Z", "usersSessions": 18, "uniqueUsers": 3 },
                { "dateTime": 1551198909885, "dateTimeStr": "2019-02-26T16:35:09Z", "usersSessions": 9, "uniqueUsers": 3 },
                { "dateTime": 1551199209885, "dateTimeStr": "2019-02-26T16:40:09Z", "usersSessions": 65, "uniqueUsers": 11 },
                { "dateTime": 1551199509885, "dateTimeStr": "2019-02-26T16:45:09Z", "usersSessions": 19, "uniqueUsers": 2 },
                { "dateTime": 1551199809885, "dateTimeStr": "2019-02-26T16:50:09Z", "usersSessions": 56, "uniqueUsers": 31 },
                { "dateTime": 1551200109885, "dateTimeStr": "2019-02-26T16:55:09Z", "usersSessions": 36, "uniqueUsers": 11 },
                { "dateTime": 1551200409885, "dateTimeStr": "2019-02-26T17:00:09Z", "usersSessions": 95, "uniqueUsers": 53 },
                { "dateTime": 1551200709885, "dateTimeStr": "2019-02-26T17:05:09Z", "usersSessions": 29, "uniqueUsers": 3 },
                { "dateTime": 1551201009885, "dateTimeStr": "2019-02-26T17:10:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551201309885, "dateTimeStr": "2019-02-26T17:15:09Z", "usersSessions": 35, "uniqueUsers": 8 },
                { "dateTime": 1551201609885, "dateTimeStr": "2019-02-26T17:20:09Z", "usersSessions": 66, "uniqueUsers": 46 },
                { "dateTime": 1551201909885, "dateTimeStr": "2019-02-26T17:25:09Z", "usersSessions": 79, "uniqueUsers": 73 },
                { "dateTime": 1551202209885, "dateTimeStr": "2019-02-26T17:30:09Z", "usersSessions": 14, "uniqueUsers": 1 }
            ]
        }
    };

window.right2 = {
        "userSessionReport": {
            "aggregated": {
                "items": { "usersSessions": 1158, "uniqueUsers": 580 }
            },
            "items": [
                { "dateTime": 1551195309885, "dateTimeStr": "2019-02-26T15:35:09Z", "usersSessions": 20, "uniqueUsers": 15 },
                { "dateTime": 1551195609885, "dateTimeStr": "2019-02-26T15:40:09Z", "usersSessions": 87, "uniqueUsers": 46 },
                { "dateTime": 1551195909885, "dateTimeStr": "2019-02-26T15:45:09Z", "usersSessions": 88, "uniqueUsers": 80 },
                { "dateTime": 1551196209885, "dateTimeStr": "2019-02-26T15:50:09Z", "usersSessions": 16, "uniqueUsers": 7 },
                { "dateTime": 1551196509885, "dateTimeStr": "2019-02-26T15:55:09Z", "usersSessions": 74, "uniqueUsers": 71 },
                { "dateTime": 1551196809885, "dateTimeStr": "2019-02-26T16:00:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551197109885, "dateTimeStr": "2019-02-26T16:05:09Z", "usersSessions": 67, "uniqueUsers": 8 },
                { "dateTime": 1551197409885, "dateTimeStr": "2019-02-26T16:10:09Z", "usersSessions": 66, "uniqueUsers": 50 },
                { "dateTime": 1551197709885, "dateTimeStr": "2019-02-26T16:15:09Z", "usersSessions": 17, "uniqueUsers": 10 },
                { "dateTime": 1551198009885, "dateTimeStr": "2019-02-26T16:20:09Z", "usersSessions": 3, "uniqueUsers": 1 },
                { "dateTime": 1551198309885, "dateTimeStr": "2019-02-26T16:25:09Z", "usersSessions": 68, "uniqueUsers": 3 },
                { "dateTime": 1551198609885, "dateTimeStr": "2019-02-26T16:30:09Z", "usersSessions": 18, "uniqueUsers": 3 },
                { "dateTime": 1551198909885, "dateTimeStr": "2019-02-26T16:35:09Z", "usersSessions": 9, "uniqueUsers": 3 },
                { "dateTime": 1551199209885, "dateTimeStr": "2019-02-26T16:40:09Z", "usersSessions": 65, "uniqueUsers": 11 },
                { "dateTime": 1551199509885, "dateTimeStr": "2019-02-26T16:45:09Z", "usersSessions": 19, "uniqueUsers": 2 },
                { "dateTime": 1551199809885, "dateTimeStr": "2019-02-26T16:50:09Z", "usersSessions": 56, "uniqueUsers": 31 },
                { "dateTime": 1551200109885, "dateTimeStr": "2019-02-26T16:55:09Z", "usersSessions": 36, "uniqueUsers": 11 },
                { "dateTime": 1551200409885, "dateTimeStr": "2019-02-26T17:00:09Z", "usersSessions": 95, "uniqueUsers": 53 },
                { "dateTime": 1551200709885, "dateTimeStr": "2019-02-26T17:05:09Z", "usersSessions": 29, "uniqueUsers": 3 },
                { "dateTime": 1551201009885, "dateTimeStr": "2019-02-26T17:10:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551201309885, "dateTimeStr": "2019-02-26T17:15:09Z", "usersSessions": 35, "uniqueUsers": 8 },
                { "dateTime": 1551201609885, "dateTimeStr": "2019-02-26T17:20:09Z", "usersSessions": 66, "uniqueUsers": 46 },
                { "dateTime": 1551201909885, "dateTimeStr": "2019-02-26T17:25:09Z", "usersSessions": 79, "uniqueUsers": 73 },
                { "dateTime": 1551202209885, "dateTimeStr": "2019-02-26T17:30:09Z", "usersSessions": 14, "uniqueUsers": 1 }
            ]
        }
    };

//2 level deep
window.left2 = {
        "userSessionReport": {
            "aggregated": {
                "items": { "usersSessions": 1159, "uniqueUsers": 580 }
            },
            "items": [
                { "dateTime": 1551195309885, "dateTimeStr": "2019-02-26T15:35:09Z", "usersSessions": 20, "uniqueUsers": 15 },
                { "dateTime": 1551195609885, "dateTimeStr": "2019-02-26T15:40:09Z", "usersSessions": 87, "uniqueUsers": 46 },
                { "dateTime": 1551195909885, "dateTimeStr": "2019-02-26T15:45:09Z", "usersSessions": 88, "uniqueUsers": 80 },
                { "dateTime": 1551196209885, "dateTimeStr": "2019-02-26T15:50:09Z", "usersSessions": 16, "uniqueUsers": 7 },
                { "dateTime": 1551196509885, "dateTimeStr": "2019-02-26T15:55:09Z", "usersSessions": 74, "uniqueUsers": 71 },
                { "dateTime": 1551196809885, "dateTimeStr": "2019-02-26T16:00:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551197109885, "dateTimeStr": "2019-02-26T16:05:09Z", "usersSessions": 67, "uniqueUsers": 8 },
                { "dateTime": 1551197409885, "dateTimeStr": "2019-02-26T16:10:09Z", "usersSessions": 66, "uniqueUsers": 50 },
                { "dateTime": 1551197709885, "dateTimeStr": "2019-02-26T16:15:09Z", "usersSessions": 17, "uniqueUsers": 10 },
                { "dateTime": 1551198009885, "dateTimeStr": "2019-02-26T16:20:09Z", "usersSessions": 3, "uniqueUsers": 1 },
                { "dateTime": 1551198309885, "dateTimeStr": "2019-02-26T16:25:09Z", "usersSessions": 68, "uniqueUsers": 3 },
                { "dateTime": 1551198609885, "dateTimeStr": "2019-02-26T16:30:09Z", "usersSessions": 18, "uniqueUsers": 3 },
                { "dateTime": 1551198909885, "dateTimeStr": "2019-02-26T16:35:09Z", "usersSessions": 9, "uniqueUsers": 3 },
                { "dateTime": 1551199209885, "dateTimeStr": "2019-02-26T16:40:09Z", "usersSessions": 65, "uniqueUsers": 11 },
                { "dateTime": 1551199509885, "dateTimeStr": "2019-02-26T16:45:09Z", "usersSessions": 19, "uniqueUsers": 2 },
                { "dateTime": 1551199809885, "dateTimeStr": "2019-02-26T16:50:09Z", "usersSessions": 56, "uniqueUsers": 31 },
                { "dateTime": 1551200109885, "dateTimeStr": "2019-02-26T16:55:09Z", "usersSessions": 36, "uniqueUsers": 11 },
                { "dateTime": 1551200409885, "dateTimeStr": "2019-02-26T17:00:09Z", "usersSessions": 95, "uniqueUsers": 53 },
                { "dateTime": 1551200709885, "dateTimeStr": "2019-02-26T17:05:09Z", "usersSessions": 29, "uniqueUsers": 3 },
                { "dateTime": 1551201009885, "dateTimeStr": "2019-02-26T17:10:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551201309885, "dateTimeStr": "2019-02-26T17:15:09Z", "usersSessions": 35, "uniqueUsers": 8 },
                { "dateTime": 1551201609885, "dateTimeStr": "2019-02-26T17:20:09Z", "usersSessions": 66, "uniqueUsers": 46 },
                { "dateTime": 1551201909885, "dateTimeStr": "2019-02-26T17:25:09Z", "usersSessions": 79, "uniqueUsers": 73 },
                { "dateTime": 1551202209885, "dateTimeStr": "2019-02-26T17:30:09Z", "usersSessions": 14, "uniqueUsers": 1 }
            ]
        }
    };

window.right2 = {
        "userSessionReport": {
            "aggregated": {
                "items": { "usersSessions": 1159, "uniqueUsers": 580 }
            },
            "items": [
                { "dateTime": 1551195309885, "dateTimeStr": "2019-02-26T15:35:09Z", "usersSessions": 20, "uniqueUsers": 15 },
                { "dateTime": 1551195609885, "dateTimeStr": "2019-02-26T15:40:09Z", "usersSessions": 87, "uniqueUsers": 46 },
                { "dateTime": 1551195909885, "dateTimeStr": "2019-02-26T15:45:09Z", "usersSessions": 88, "uniqueUsers": 80 },
                { "dateTime": 1551196209885, "dateTimeStr": "2019-02-26T15:50:09Z", "usersSessions": 16, "uniqueUsers": 7 },
                { "dateTime": 1551196509885, "dateTimeStr": "2019-02-26T15:55:09Z", "usersSessions": 74, "uniqueUsers": 71 },
                { "dateTime": 1551196809885, "dateTimeStr": "2019-02-26T16:00:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551197109885, "dateTimeStr": "2019-02-26T16:05:09Z", "usersSessions": 67, "uniqueUsers": 8 },
                { "dateTime": 1551197409885, "dateTimeStr": "2019-02-26T16:10:09Z", "usersSessions": 66, "uniqueUsers": 50 },
                { "dateTime": 1551197709885, "dateTimeStr": "2019-02-26T16:15:09Z", "usersSessions": 17, "uniqueUsers": 10 },
                { "dateTime": 1551198009885, "dateTimeStr": "2019-02-26T16:20:09Z", "usersSessions": 3, "uniqueUsers": 1 },
                { "dateTime": 1551198309885, "dateTimeStr": "2019-02-26T16:25:09Z", "usersSessions": 68, "uniqueUsers": 3 },
                { "dateTime": 1551198609885, "dateTimeStr": "2019-02-26T16:30:09Z", "usersSessions": 18, "uniqueUsers": 3 },
                { "dateTime": 1551198909885, "dateTimeStr": "2019-02-26T16:35:09Z", "usersSessions": 9, "uniqueUsers": 3 },
                { "dateTime": 1551199209885, "dateTimeStr": "2019-02-26T16:40:09Z", "usersSessions": 65, "uniqueUsers": 11 },
                { "dateTime": 1551199509885, "dateTimeStr": "2019-02-26T16:45:09Z", "usersSessions": 19, "uniqueUsers": 2 },
                { "dateTime": 1551199809885, "dateTimeStr": "2019-02-26T16:50:09Z", "usersSessions": 56, "uniqueUsers": 31 },
                { "dateTime": 1551200109885, "dateTimeStr": "2019-02-26T16:55:09Z", "usersSessions": 36, "uniqueUsers": 11 },
                { "dateTime": 1551200409885, "dateTimeStr": "2019-02-26T17:00:09Z", "usersSessions": 95, "uniqueUsers": 53 },
                { "dateTime": 1551200709885, "dateTimeStr": "2019-02-26T17:05:09Z", "usersSessions": 29, "uniqueUsers": 3 },
                { "dateTime": 1551201009885, "dateTimeStr": "2019-02-26T17:10:09Z", "usersSessions": 66, "uniqueUsers": 22 },
                { "dateTime": 1551201309885, "dateTimeStr": "2019-02-26T17:15:09Z", "usersSessions": 35, "uniqueUsers": 8 },
                { "dateTime": 1551201609885, "dateTimeStr": "2019-02-26T17:20:09Z", "usersSessions": 66, "uniqueUsers": 46 },
                { "dateTime": 1551201909885, "dateTimeStr": "2019-02-26T17:25:09Z", "usersSessions": 79, "uniqueUsers": 73 },
                { "dateTime": 1551202209885, "dateTimeStr": "2019-02-26T17:30:09Z", "usersSessions": 14, "uniqueUsers": 3 }
            ]
        }
    };

Tests:

JSON.stringify level1 with array
JSON.stringify(window.left1) === JSON.stringify(window.right1);
_.isEqual level1 with array
_.isEqual(window.left1, window.right1)
JSON.stringify level2 with array
JSON.stringify(window.left2) === JSON.stringify(window.right2);
_.isEqual level2 with array
_.isEqual(window.left2, window.right2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JSON.stringify level1 with array
_.isEqual level1 with array
JSON.stringify level2 with array
_.isEqual level2 with array

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):

LLMs can make mistakes. Check important info.

Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.100 Safari/537.36

Browser/OS: Chrome 76 on Windows

View result in a separate tab

Test name	Executions per second
JSON.stringify level1 with array	77543.5 Ops/sec
_.isEqual level1 with array	1622540.0 Ops/sec
JSON.stringify level2 with array	40978.1 Ops/sec
_.isEqual level2 with array	20948.4 Ops/sec

Related benchmarks:

Lodash isEqual and JSON.Stringify (version: 0)

Test on isEqual performance

Comparing performance of: JSON.stringify level1 with array vs _.isEqual level1 with array vs JSON.stringify level2 with array vs _.isEqual level2 with array

Created: 5 years ago by: Guest

Jump to the latest result

JSON.stringify level1 with array

_.isEqual level1 with array

JSON.stringify level2 with array

_.isEqual level2 with array

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated 29 days ago):