Run results for: lodash assign vs spread operator properly

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.101 Safari/537.36

Browser: Chrome 87

Operating system: Mac OS X 11.1.0

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
lodash	1814175.6 Ops/sec
native	1481756.6 Ops/sec

HTML Preparation code:

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

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

Script Preparation code:

var person = {name: 'Frederick', lastName: 'Corcino Alejo'};

 
var person = {name: 'Frederick', lastName: 'Corcino Alejo'};

Tests:

let age = {age:15};
let copied = _.assign({}, person, age);

 
let age = {age:15};let copied = _.assign({}, person, age);

let age = {age: 15};
let copied = {...person, ...age};

 
let age = {age: 15};let copied = {...person, ...age};