Has JavaScript displaced Java as the new “Write once, run anywhere” (WORA) programming language? It all depends on your perspective. And with technologies such as WebAssembly arriving on the scene, Java could get a boost in a newfangled “write once, compile anywhere” paradigm.

Java will run wherever the JVM works, providing portability across many operating systems and hardware platforms including mobile and embedded devices. But JavaScript, always crucial to in-browser applications, now works for desktop applications via technology such as the Electron framework, for mobile applications via frameworks like React Native, and for web back ends through Node.js and Deno, notes developer Shalitha Suranga, author of the Neutralino JavaScript/TypeScript framework.

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