Run results for: Underscore vs Lodash isEqual vs JSON.stringify with sorting

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36

Browser: Chrome 113

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Underscore equal

1.0M/s

JSON Stringify comparison

796K/s

Lodash equal

561K/s

JSON Stringify with presorting comparison

217K/s

View exact numbers

Test name	Executions per second
✓ Underscore equal	1,026,252 Ops/sec
JSON Stringify comparison	796,283 Ops/sec
Lodash equal	561,467 Ops/sec
JSON Stringify with presorting comparison	216,506 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'
        }
    }
};

Tests:

Underscore equal
underscore.isEqual(obj1, obj1copy);
Lodash equal
lodash.isEqual(obj1, obj1copy);
JSON Stringify with presorting comparison
function SortedJSONstringify(a) { const keySet = new Set(); JSON.stringify(a, (key, value) => (keySet.add(key), value)); const sortedKeys = Array.from(keySet).sort(); return JSON.stringify(a, sortedKeys); } SortedJSONstringify(obj1) === SortedJSONstringify(obj1copy)
JSON Stringify comparison
JSON.stringify(obj1) === JSON.stringify(obj1copy)

Run results for: Underscore vs Lodash isEqual vs JSON.stringify with sorting

Compare Underscore vs Lodash isEqual vs JSON.stringify: Which is faster?

Underscore equal

Lodash equal

JSON Stringify with presorting comparison

JSON Stringify comparison