Benchmark: Underscore vs Lodash vs Custom Vanilla JS: isEqual

HTML Preparation code:


<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script type="text/javascript">
  window.lodash = _;
  _ = null;
</script>
<script src='https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.9.1/underscore-min.js'></script>
<script type="text/javascript">
  window.underscore = _;
  _ = null;
</script>

Script Preparation code:

var obj1 = {
  0: {
    1: {
      key: 'one'
  	}
  }
};

var obj1copy = {
  0: {
    1: {
      key: 'one'
  	}
  }
};

var obj2 = {
  0: {
    1: {
      key: 'two'
  	}
  }
};
function isEqual(a,b){
	return JSON.stringify(a) === JSON.stringify(b)
}

Tests:

Underscore equal
underscore.isEqual(obj1, obj1copy);
Lodash equal
lodash.isEqual(obj1, obj1copy);
JSON Stringify comparison
JSON.stringify(obj1) === JSON.stringify(obj1copy)
Callback
isEqual(obj1, obj1copy);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Underscore equal
Lodash equal
JSON Stringify comparison
Callback

Fastest: N/A

Slowest: N/A

ⓘ Get performance results from real users on your website with Request Metrics.

Website Performance Monitoring by Request Metrics

Latest run results:

Run details: (Test run date: 8 days ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:125.0) Gecko/20100101 Firefox/125.0

Browser/OS: Firefox 125 on Mac OS X 10.15

View result in a separate tab

Test name	Executions per second
Underscore equal	1716105.0 Ops/sec
Lodash equal	727238.5 Ops/sec
JSON Stringify comparison	1025606.0 Ops/sec
Callback	1056750.0 Ops/sec

Underscore vs Lodash vs Custom Vanilla JS: isEqual (version: 0)

Compare Underscore vs Lodash isEqual. Which is faster?

Comparing performance of: Underscore equal vs Lodash equal vs JSON Stringify comparison vs Callback

Created: 3 years ago by: Guest

Jump to the latest result

Underscore equal

Lodash equal

JSON Stringify comparison

Callback

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A