Benchmark Run Result for: Array.prototype.concat vs spread operator

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

HTML Preparation code:

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

Tests:

lodash 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 };