Java 8 was released in 2014, since then Optional is in the standard library and a rather common pattern. Like Rust you can use LLVM to compile Java to WASM (JWebAssembly), and there's also TeaVM for turning a project into an optimised WASM application and CheerpJ for running a JVM in WASM.
It was rather messy to use cargo on handheld ARM, it didn't spark joy so I kind of stopped trying after a while. Mostly I use Rust as a dependency I don't need to touch, but when I've programmed in it I didn't feel like cargo was that big of a thing. Maybe I would feel another way if the frame of reference was only like webpack or Pip or something.
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Java 8 was released in 2014, since then Optional is in the standard library and a rather common pattern. Like Rust you can use LLVM to compile Java to WASM (JWebAssembly), and there's also TeaVM for turning a project into an optimised WASM application and CheerpJ for running a JVM in WASM.
It was rather messy to use cargo on handheld ARM, it didn't spark joy so I kind of stopped trying after a while. Mostly I use Rust as a dependency I don't need to touch, but when I've programmed in it I didn't feel like cargo was that big of a thing. Maybe I would feel another way if the frame of reference was only like webpack or Pip or something.