Well the user perspective is: suddenly there a compilers for all kind of languages targetting the browser because wasm makes it easier for the maintainers to build them.

Sure you could have implemented unsigned integer semantics on top of bool-arrays in javascript years ago but if the result is too slow you have gained because the compiled c++ code does not run fast enough to be usable.

Regarding numbers, Javascript supports bigints now - which makes the situation a little bit better. (But maybe a lot more complex).

I wish they were somehow better supported by JSON.parse though.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...