Published : Oct 28, 2020
Not on the current edition
This blip is not on the current edition of the Radar. If it was on one of the last few editions it is likely that it is still relevant. If the blip is older it might no longer be relevant and our assessment might be different today. Unfortunately, we simply don't have the bandwidth to continuously review blips from previous editions of the Radar
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Oct 2020
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Hermes is a JavaScript engine optimized for fast start-up of React Native applications on Android. JavaScript engines such as V8 have just-in-time (JIT) compilers that profile the code at run time to produce optimized instructions. Hermes, however, takes a different approach by compiling the JavaScript code ahead of time (AOT) into an optimized bytecode. As a result you get a smaller APK image size, lean memory consumption and faster startup time. We're carefully assessing Hermes in a few React Native apps and recommend you do the same.