Benchmark: Array.prototype.concat vs spread operator

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: 'oh', b: 'my' }; var b = { c: 'goddess' }; var c = _.merge(a, b);
spread operator
var a = { a: 'oh', b: 'my' }; var b = { c: 'goddess' }; var c = { a, ...b };

Rendered benchmark preparation results:

Previous results

Test case name	Result
lodash merge
spread operator

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Latest run results:

Run details: (Test run date: 5 years ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36

Browser/OS: Chrome 68 on Windows

Test name	Executions per second
lodash merge	1673866.0 Ops/sec
spread operator	4008919.0 Ops/sec

Array.prototype.concat vs spread operator (version: 0)