Benchmark: Deep equality - MeasureThat.net

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

window.isEqualStringify = (obj1, obj2) => JSON.stringify(obj1) === JSON.stringify(obj2);
window.isEqualLodash = _.isEqual;

window.test1 = {
  obj: {},
  arr: [],
};

for (let i = 0; i < 1000; i++) {
  test1.obj['prop_' + i] = {};
  
  let arrReference = [];
  test1.arr.push(arrReference);
  
  let objReference = test1.obj['prop_' + i];
  for (let j = 0; j < i; j++) {
    objReference['internal_prop_' + j] = {};
    objReference = objReference['internal_prop_' + j];
    
    arrReference.push(j);
  }
}

window.test2 = JSON.parse(JSON.stringify(test1));

Tests:

JSON.stringify
isEqualStringify(test1, test2)
lodash.isEqual
isEqualLodash(test1, test2)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JSON.stringify
lodash.isEqual

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 4 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36

Browser/OS: Chrome 76 on Windows

View result in a separate tab

Test name	Executions per second
JSON.stringify	2.8 Ops/sec
lodash.isEqual	1.2 Ops/sec

Deep equality (version: 3)

Comapison of two methods of objects comparison: by strings of JSON.stringify and isEqual

Comparing performance of: JSON.stringify vs lodash.isEqual

Created: 4 years ago by: Registered User

Jump to the latest result

JSON.stringify

lodash.isEqual

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A