"Some modules won't be ported since they have third party dependencies such as Numpy"

[stuaxo]

Vispy has an aspiration to write a small numpy in js:

https://github.com/vispy/vispy/issues/514

NDArray looks interesting, their docs have a section:

Coming from MATLAB or numpy? See: scijs/ndarray for MATLAB users

https://github.com/scijs/ndarray