Run results for: Comparing different object merge methods

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.36 Safari/537.36

Browser: Chrome 79

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

HTML Preparation code:

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

Tests:

Lodash merge
var a = { a: 'foo', b: 'bar' }; var b = { c: 'foobar' }; var c = _.merge(a, b);
object.assign
var a = { a: 'foo', b: 'bar' }; var b = { c: 'foobar' }; var c = Object.assign(a, b);
spread
var a = { a: 'foo', b: 'bar' }; var b = { c: 'foobar' }; var c = { ...a, ...b };
spread mutate
var a = { a: 'foo', b: 'bar' }; var b = { c: 'foobar' }; a = { ...a, ...b };