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ES6 polyfill vs. feature performance tests

4 mentions on Hacker News by 3 people: 0 stories, 4 comments · first 2016-03-01 · latest 2016-10-24

Mentions per year 4 mentions · busiest year 2016 (4)
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  1. …a valid concern. And I do not trust the six-speed test to do the right thing here. See for example https://github.com/kpdecker/six-speed/pull/42 where the test claims to be measuring the speed of destructuring, but in Firefox the result is…
    comment by sfink · 2016-10-24 · in Overview of JavaScript ES6 features
  2. …is correct per spec. I can't speak to what Babel is doing here, but simply looking at the tests in https://github.com/kpdecker/six-speed/tree/master/tests/dest... it's clear that the "es5" version and "es6" version are testing different…
    comment by bzbarsky · 2016-04-25 · in Node.js ES2015/ES6 support
  3. …it says "1.2x slower", it really means "84% of baseline" [1], which might be a bit misleading. [1] https://github.com/kpdecker/six-speed/blob/master/data.json#...
  4. …a lot like "twice as fast". (In this case, "1.0x faster" is reported as "identical" [2]). [1] https://github.com/kpdecker/six-speed/blob/master/data.json#... [2] https://github.com/kpdecker/six-speed/blob/master/tasks%2Fre...