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I worked on Hermes and I would say it's absolutely an actual JavaScript engine, targeting the ES spec. Its focus on startup performance means it makes different
by ridiculous_fish 4y ago
I worked on Hermes and I would say it's absolutely an actual JavaScript engine, targeting the ES spec. Its focus on startup performance means it makes different tradeoffs than other engines.
- gigel82 4y agoI respectfully disagree. In order to debug Hermes, you need to build React Native (the inspector / CDP component is not part of the Hermes Git repo). There are React Native features inside Hermes (like drain microtasks, etc.). And you need special Metro bundler configs to produce bundles that are compatible with Hermes (somewhat ES5, definitely not ES6).