High-performance ES2015 and beyond · V8

Show navigation Over the last couple of months the V8 team focused on bringing the performance of newly added ES2015 and other even more recent JavaScript features on par with their transpiled ES5 counterparts. Motivation #Before we go into the details of the various improvements, we should first consider why performance of ES2015+ features matter despite the widespread usage of Babel in modern we

[berlysia]

"Fortunately, Ignition and TurboFan (...), were designed to support the entire JavaScript language from the beginning, including advanced control flow, exception handling, and most recently for-of and destructuring from ES2015."

[Jxck]

es2015 の高速化の話

[mysticatea]

イテレータが try/finally に依存していて、Rest/Spred や分割代入、ジェネレータに async/await まで全部イテレータに依存しているので、とにかく try/catch/finally を最適化できるようにするのが重要だったようだ。

[yosuke_furukawa]

やたー ES2015+ が V8 で速くなるー

[efcl]

V8のES2015+のパフォーマンス改善の取り組みについて。 Babelで変換されたコードサイズの問題やES5で同等の事を行う時の速度の違いについてなど