Run results for: lodash merge, lodash assign, Object.assign, es6 spread

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser: Chrome 112

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
lodash assign (shallow copy)	3332342.2 Ops/sec
Object.Assign (in-place modify)	4206730.5 Ops/sec
lodash merge (deep copy)	1812334.9 Ops/sec
ES6 spread (new object)	1352337.0 Ops/sec

HTML Preparation code:

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

Tests:

lodash assign (shallow copy)
var a = { a: 'This is not Vietnam, this is bowling!', b: 'There are rules!' }; var b = { c: "Dude." }; var c = _.assign(a, b);
Object.Assign (in-place modify)
var a = { a: 'This is not Vietnam, this is bowling!', b: 'There are rules!' }; var b = { c: "Dude." }; var c = Object.assign(a, b);
lodash merge (deep copy)
var a = { a: 'This is not Vietnam, this is bowling!', b: 'There are rules!' }; var b = { c: "Dude." }; var c = _.merge(a, b);
ES6 spread (new object)
var a = { a: 'This is not Vietnam, this is bowling!', b: 'There are rules!' }; var b = { c: "Dude." }; var c = { ...a, ...b };