Why it is that C++ can be compiled to JavaScript bytecode that is WebAssembly (using EMSCRIPTEN), but it cannot be compiled to Java Bytecode?

• AECforWebAssembly

  51 31 8.0 C++

  A port of ArithmeticExpressionCompiler from x86 to WebAssembly, so that the programs written in the language can run in a browser. The compiler has been rewritten from JavaScript into C++.

Can somebody explain to me, why it is that C++ can be compiled to JavaScript bytecode that is WebAssembly (using EMSCRIPTEN), but it cannot be compiled to Java Bytecode? What is such a big difference between WebAssembly and Java Bytecode? I am asking as somebody who has built a compiler that outputs WebAssembly Text Format (https://github.com/FlatAssembler/AECforWebAssembly.git). It would be nice to be able to use Swing GUI from C++ and have cross-platform C++ executables that run wherever Java runs, wouldn't it? So, why cannot we have that?

• lljvm

  4 451 10.0 Java

  Low Level Java Virtual Machine

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• WebGui

  5 633 2.1 C++

  An example demo of IMGUI (Immediate Mode GUI) on the web. Using only WebGL, GLFW and ImGui. Suitable for being compiled to web assembly (WASM).

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