React Native仍然是解释型的,还是现在已经基于编译了?

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英文:

Is React Native still interpreted or now it's compilation-based?

问题

在2016年,答案是基于这个问题https://stackoverflow.com/questions/41124338/does-react-native-compile-javascript-into-java-for-android 进行“解释”。然而,自从2022年以来,React Native引入了新的架构:

> 新架构放弃了“桥梁”的概念,转而采用了另一种通信机制:JavaScript接口(JSI)。JSI是一个允许JavaScript对象持有对C++的引用,反之亦然的接口。
一旦一个对象引用了另一个对象,它可以直接调用其方法。所以,例如,C++对象现在可以要求JavaScript对象在JavaScript世界中执行一个方法,反之亦然。

https://reactnative.dev/docs/the-new-architecture/why

据我理解,它仍然是一种解释性方法。但是今天我阅读的一些文章和一个硕士论文声称它是基于编译的,但没有明确解释这种说法。也许我的理解是错误的。那么React Native是仍然是解释性的,还是现在已经编译了?

英文:

In 2016 the answer was " interpreted " based on this question https://stackoverflow.com/questions/41124338/does-react-native-compile-javascript-into-java-for-android. However, since 2022 React Native has introduced new architecture:

> The New Architecture dropped the concept of The Bridge in favor of another communication mechanism: the JavaScript Interface (JSI). The JSI is an interface that allows a JavaScript object to hold a reference to a C++ and vice-versa.
Once an object has a reference to the other one, it can directly invoke methods on it. So, for example, a C++ object can now ask a JavaScript object to execute a method in the JavaScript world and viceversa.

https://reactnative.dev/docs/the-new-architecture/why

To my understanding, it's still an interpreted approach. But some articles and one master's thesis I read today claim that it's compilation-based without clear explanation of the statement. Perhaps my understanding is wrong. So is React Native still interpreted or now it's compiled?

答案1

得分: 4

React Native仍然包括在JS解释器中执行的JavaScript代码,具体来说,由于新架构的更改,将打开哪个解释器将会公开。

以下是一篇详细比较旧架构和新架构的优秀文章:https://medium.com/coox-tech/deep-dive-into-react-natives-new-architecture-fb67ae615ccd

英文:

React Native still includes Javascript code which is executed in a JS interpreter, which one specifically will be open thanks to the changes of the new architecture.

Here's a neat article which compares the old and new architectures in sufficient detail: https://medium.com/coox-tech/deep-dive-into-react-natives-new-architecture-fb67ae615ccd

答案2

得分: 1

React Native 仍然主要是一种解释性语言,即使引入了基于新 JSI 架构的功能。JSI 允许 JavaScript 与原生代码之间更直接的通信,但这并不改变 JavaScript 代码在运行时仍然是解释执行的事实。

英文:

React Native is still primarily an interpreted language, even with the introduction of the new JSI-based architecture. The JSI allows for more direct communication between JavaScript and native code, but it does not change the fact that the JavaScript code is still interpreted at runtime.

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  • 本文由 发表于 2023年4月19日 22:16:19
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