Run results for: Underscore vs Lodash vs Custom Vanilla JS: isEqual

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:122.0) Gecko/20100101 Firefox/122.0

Browser: Firefox 122

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 3 months ago

Test name	Executions per second
Underscore equal	2370438.0 Ops/sec
Lodash equal	1024319.0 Ops/sec
JSON Stringify comparison	2736579.0 Ops/sec
Callback	2779066.0 Ops/sec

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);

Run results for: Underscore vs Lodash vs Custom Vanilla JS: isEqual

Compare Underscore vs Lodash isEqual. Which is faster?

Underscore equal

Lodash equal

JSON Stringify comparison

Callback