Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/11.1 Safari/605.1.15
Safari 11
Mac OS X 10.13.4
Other
6 years ago
Test name Executions per second
Array.prototype.concat 1401175.8 Ops/sec
spread operator 52382820.0 Ops/sec
Lodash merge 1155708.0 Ops/sec
HTML Preparation code:
Tests:
  • Array.prototype.concat

  • spread operator

  • Lodash merge