Run results for: Lodash vs Native reduce on lqrgeobject

Run details:

User agent: Mozilla/5.0 (Linux; Android 10; POCO F1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.127 Mobile Safari/537.36

Browser: Chrome Mobile 85

Operating system: Android

Device Platform: Mobile

Date tested: 4 years ago

Test name	Executions per second
Lodash	30.1 Ops/sec
Native	24.9 Ops/sec

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

AخA
 
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.4/lodash.min.js"></script>

Script Preparation code:

window.obj = {};

for (var i = 0, len = 1001; i < len; i++) {
  var arr = []
  obj['key' + i] = arr
  for (var n = 0, len = 1001; n < len; n++) {
    arr.push({ ['key' + n]: n });
  }
}

​x
 
window.obj = {};​for (var i = 0, len = 1001; i < len; i++) {  var arr = []  obj['key' + i] = arr  for (var n = 0, len = 1001; n < len; n++) {    arr.push({ ['key' + n]: n });  }}

Tests:

Lodash

_.reduce(obj, (acc, val, key) => {
  acc[key] = val.map(d => ({ label: key, value: val }));
  return acc;
}, {})

 
_.reduce(obj, (acc, val, key) => {  acc[key] = val.map(d => ({ label: key, value: val }));  return acc;}, {})

Native

Object.entries(obj).reduce((acc, [key, val]) => {
  acc[key] = val.map(d => ({ label: key, value: val }));
  return acc;
}, {})

 
Object.entries(obj).reduce((acc, [key, val]) => {  acc[key] = val.map(d => ({ label: key, value: val }));  return acc;}, {})