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How should units in variable names be handled? Often, casing changes the meaning significantly. A variable currentLimitMA technically implies that the current limit is in mega-amps, which is very different from the likely intended milli-amps. I really don't like currentLimitmA, since it makes word boundaries unclear.

I can imagine a variable capacitorPF, which if read 'correctly', refers to PetaFerads, a very different scale than picoFarads, and a value much larger than you'd ever see in the real world.

how are you getting data into these variables? could be a good idea to simply model the units as a value class and accept a "Current" and "Impedance" rather than just a number.. and then that could always be in base units. A bit similar to how a Duration can be either a millisecond or a year.

㎃ is a unicode character `\u3383` :slightly_smiling_face:

but for real, I'd consider a wrapper class that conveys the SI unit

if that's not an option, then I'd spell it out longhand

I'd generally prefer wrapper class too and will likely do that for the jvm portion. I also have to make a TypeScript library, so won't have value classes there.

unless it's performance critical code, I'd take a non-inlined wrapper in TS over the ambiguity any day :slightly_smiling_face:

or if you make the assumption that nobody would use units of current other than amperes, `currentLimitMillis`, similar to many time-based APIs using `toMillis()` etc. assuming that it's simply understood to be multiples of seconds

<http://xahlee.info/comp/unicode_units.html> if you want to try my initial non-serious answer :stuck_out_tongue:

There are a number of third-party libraries for units that might be worth considering:
<https://sis.apache.org/apidocs/org/apache/sis/measure/Units.html>
<https://github.com/vsirotin/si-units>
<https://nacular.github.io/measured/#/>
<https://github.com/unitsofmeasurement>

&gt; <http://xahlee.info/comp/unicode_units.html> if you want to try my initial non-serious answer
Wow, I never knew there were so many symbols, and all this time I've been writing "a.m." and "p.m." instead of "㏂" and "㏘". By the way, I don't think "㏙" is related to time - I know it as "parts per million" as used in chemistry.

&gt; but for real, I'd consider a wrapper class that conveys the SI unit
:+1: I love `java.time.Duration` precisely because you stop worrying about the units. No more `timeoutMillis`, you can just call it `timeout`.

(Staggering number of libraries just call it `timeout` _and use a Long as the type_, of course... and have documentation that helpfully explains this represents "the time before the operation will fail")