Are you referring to 
<a href="https:&#x2F;&#x2F;github.com&#x2F;samccone&#x2F;The-cost-of-transpiling-es2015-in-2016" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;samccone&#x2F;The-cost-of-transpiling-es2015-i...</a> ?<p>These benchmarks are about the cost of transpilation (where ES6 support is not native).