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javascriptreact-nativejitjavascriptcore
Lucas Garcez
Lucas Garcez

Reputation: 407

React Native use JIT(Just in Time) compilation or interpret JavaScript code on Android?

According to the React Native documentation when an app runs in IOS it uses the JavaSriptCore engine to run JavaScript code, but does not use JIT.

"Note that on iOS, JavaScriptCore does not use JIT due to the absence of writable executable memory in iOS apps."

But there's nothing about it on Android. I would like to know if in Android JavaScript code is interpreted or JIT compiled.

Upvotes: 1

Views: 2553

Answers (1)

Yuna
Yuna

Reputation: 1417

Technically both. JIT compilation means it does interpretation when executed and optional optimization when it's required (Caching in memory to reuse without re-translation). But iOS doesn't allow this kind of dynamic compilation, that's why the documentation saids.

Upvotes: 1

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