Nice stuff.
The API might be more convenient if you could (also) call it like:
demo.speed();
Or even:
demo.speed;
with a
demo.set("$GPRMC,001225,A,2832.1834,N,08101.0536,W,12,25,251211,1.2,E,A*03");
For those who want to provide another sentence than provided during class instantation.
This way the editor will help you avoid asking by accident for fields that do not exist (e.g. "attitude" instead of "altitude" ;-))
My 2cts :-)
Why would anyone recommend this in a post of today ?
"express-fileupload": "^1.1.7-alpha.3",
When the current version is 1.4.0 and was published a year ago ?
https://www.npmjs.com/package/express-fileupload