Benchmark: lodash isEmpty vs enumerating object keys

HTML Preparation code:

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

Script Preparation code:

window.items = [
  { id: 'a5', a: 1, b: 2 },
  { id: 'a3', a: 1, b: 2 },
  { id: 'a8', a: 1, b: 2 },
  { id: 'b1', a: 1, b: 2 },
  { id: 'ac0', a: 1, b: 2 },
  { id: 'a7', a: 1, b: 2 },
  { id: 'a0', a: 1, b: 2 },
  { id: 'a6', a: 1, b: 2 },
  { id: 'a5', a: 1, b: 2 },
  { id: 'a4', a: 1, b: 2 },
  { id: 'a3', a: 1, b: 2 },
  { id: 'a2', a: 1, b: 2 }
];

window.products = {
  a0: { x: 1, y: 1, z: 1, id: 'a0' },
  a1: { x: 1, y: 1, z: 1, id: 'a1' },
  a2: { x: 1, y: 1, z: 1, id: 'a2' },
  a3: { x: 1, y: 1, z: 1, id: 'a3' },
  a5: { x: 1, y: 1, z: 1, id: 'a5' },
  a7: { x: 1, y: 1, z: 1, id: 'a7' },
  a8: { x: 1, y: 1, z: 1, id: 'a8' },
  a9: { x: 1, y: 1, z: 1, id: 'a9' },
  a10: { x: 1, y: 1, z: 1, id: 'a10' },
  a11: { x: 1, y: 1, z: 1, id: 'a11' },
  a12: { x: 1, y: 1, z: 1, id: 'a12' },
  a13: { x: 1, y: 1, z: 1, id: 'a13' },
  a14: { x: 1, y: 1, z: 1, id: 'a14' },
  a15: { x: 1, y: 1, z: 1, id: 'a15' },
  a16: { x: 1, y: 1, z: 1, id: 'a16' }
};

Tests:

Lodash isempty
window.result = _(items) .map(item => item.id) .uniq() .map(id => products[id] || {}) .value() .filter(el => !_.isEmpty(el)); //console.log('result lodash:', result);
enumerated object keys
window.result = _(items) .map(item => item.id) .uniq() .map(id => products[id] || {}) .value() .filter(el => !!Object.keys(el).length); //console.log('result native:', result);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash isempty
enumerated object keys

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: 2 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.51 Safari/537.36

Browser/OS: Chrome 99 on Windows

View result in a separate tab

Test name	Executions per second
Lodash isempty	147267.1 Ops/sec
enumerated object keys	166109.2 Ops/sec

lodash isEmpty vs enumerating object keys (version: 0)

Comparing performance of: Lodash isempty vs enumerated object keys

Created: 2 years ago by: Guest

Jump to the latest result

Lodash isempty

enumerated object keys

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A