EDIT: I know it’s better to use types to represent units. Please don’t write yet another comment about it. You can find my response to that point here: https://programming.dev/comment/219329
Those are just types. You shouldn’t write types in the names. It’s called Hungarian Notation, but it’s just redundant. If you need to check the type of a variable, hover over it and your IDE should tell you that temperatureThreshold is type DegreesCelsius. No need to add extra cruft. There’s also a question of how specific everything needs to be.
It’s also especially problematic if you later refactor things. If you change units, then you have to rename every variable.
Plus, variables shouldn’t really be tied to a specific unit. If you need to display in Fahrenheit, you ideally just pass temperatureThreshold and it converts types as needed. A Temperature type that that has degreesF() and degreesC() functions is even cleaner. Units should just be private to the type’s struct.
Not sure what languages you commonly work with, but in good modern languages you can simply declare “feet” as an alias of integer (or double?), and no refactoring would be required.
And any good toolchain to parse / generate JSON/etc can absolutely get the types right.
There are plenty of times where the type is just something generic like an integer and making a wrapper type is not worth the effort and this is a useful approach.
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Those are just types. You shouldn’t write types in the names. It’s called Hungarian Notation, but it’s just redundant. If you need to check the type of a variable, hover over it and your IDE should tell you that
temperatureThresholdis typeDegreesCelsius. No need to add extra cruft. There’s also a question of how specific everything needs to be.It’s also especially problematic if you later refactor things. If you change units, then you have to rename every variable.
Plus, variables shouldn’t really be tied to a specific unit. If you need to display in Fahrenheit, you ideally just pass
temperatureThresholdand it converts types as needed. ATemperaturetype that that hasdegreesF()anddegreesC()functions is even cleaner. Units should just be private to the type’s struct.I absolutely agree. But:
Obviously as a Hungarian I have a soft spot for Hungarian notation :) But in these cases I think it’s warranted.
Not sure what languages you commonly work with, but in good modern languages you can simply declare “feet” as an alias of integer (or double?), and no refactoring would be required.
And any good toolchain to parse / generate JSON/etc can absolutely get the types right.
There are plenty of times where the type is just something generic like an integer and making a wrapper type is not worth the effort and this is a useful approach.