How can I get the list of units accepted by mathjs?

[AFZL210]

Is there any constant or something similar that I can import? I just need to get the list of accepted units.

[dvd101x]

Hi, I'm including a relevant discussion.
#2805

[josdejong]

You can lookup math.Unit.UNITS, and write out every unit with every prefix that it can have:

const allUnits = Object.values(math.Unit.UNITS).flatMap(unit => {
  return Object.values(unit.prefixes).map(prefix => prefix.name + unit.name)
})
// [ "meter", "decameter", "hectometer", ... ] 

This currently returns a list with 2748 items.

If you just need to know if some string is a unit, you can use the following method:

const isUnit = math.Unit.isValuelessUnit("millimeter") // true

[AFZL210]

Thank you @josdejong and @dvd101x

[orelbn]

I am having issues with typescript not recognizing the Unit class.

Am I doing anything wrong (Mathjs v13.0.0)?

[josdejong]

Hm it looks like Unit.isValuelessUnit is missing from the type definitions. Anyone able to add this static function to the definitions? Help would be welcome.

[orelbn]

Thanks for the response. I just used typescript expect error for now.
The typing for static methods will take me a minute to figure out. In the meantime, I took a stab at the typing for the parser.
#3226