It can download Javascript (or other interpreted language, or config data), but you generally can't download and execute new compiled native code on iOS, due to iOS code-signing/executable-memory restrictions.
replyAlso keep in mind Apple might penalize you for dodging the review process and shipping new features, etc.
(btw, one exception to the JIT rule is custom browsers for the EU)
Pardon my ignorance but can't an iOS app host a WASM runtime without being a browser? And if so it doesn't need to be an interpreted language necessarily.
replyI am fairly certain this is against Apple's policies. In principle you're not supposed to change the functionality of your app without review.
replyi don't see any difference between wasm and js? If react native apps can be updated with js, wasm should be allowed.
replyI think updating js without review is also against policy.
replyIt's a grey area.
replyApp Review Guidelines §2.5.2 says: "Apps should be self-contained in their bundles, and may not read or write data outside the designated container area, nor may they download, install, or execute code which introduces or changes features or functionality of the app, including other apps"
Technically Apple can punish you for anything but so far it seems to be accepted for small fixes and tweaks.
Yes, it could, but then you would have re-invented React Native. But in WASM.
replyYeah, but to my understanding that’s not what Shopify is doing.
replyPrecisely. That has always been prohibited both by technical measures and by the App Store review guidelines. Especially on Apple, but also on Google Play / Android as well.
replyDoing so would require the app to have the business logic written in JavaScript. Apple only allows JIT’ing JavaScript using JSC.
replyThis seems to be a weaker claim than "RN is needed to do this", but practically speaking it might amount to that.
replySure you can choose not to adopt React’s reactive paradigm and manage state directly but using JavaScript. My understanding was that in RN, JavaScript code manipulates C++ objects in the C++ part of RN, which then calls host platform code to create views and render.
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