I can't decide which is the best option for adding...

# random

[Vitaliy Zarubin]

I can't decide which is the best option for adding 3 numbers?

[iamthevoid]

The best - do not reinvent the wheel

[rtsketo]

infix fun Int.div(n :Int): Int = this + n

And let the anarchy begin 🦜

[Roukanken]

I assume ya come from Haskell or similar environment? 😛

[darkmoon_uk]

Please let this be some kind of joke

[Vitaliy Zarubin]

Haskell doesn't support IntelliJ IDEA well 🤫

[Byron Katz]

I was thinking about this last night. Currying. It's necessary in functional programming, because it's the only way to have multiple arguments. But other than contrived examples, I've never seen a realistic, plain, valuable approach that benefitted from currying when it wasn't required.

[Vitaliy Zarubin]

@Byron Katz
Where partial application is needed. I liked this example.

[Byron Katz]

I always found it easier to follow a plain procedural approach

[Vitaliy Zarubin]

I think this is a matter of taste. 🙂

[Roukanken]

imho, currying is useless, or near useless in Kotlin
you got 2 great alternatives:
a) lambdas, which you can easily use for making new functions
b) if you need to do a lot of currying in same way, a class with invoke will be indistinguishable by usage, but it's definition will definitely be clearer on what it's doing

you shown b) there, even if not with invoke
and by lambdas you can simply do:

fun countTax(price: Double, taxRate: Double): Double = price * taxRate + price
val countMyCountryTax = { price: Double -> countTax(price, 0.2) }

countMyCountryTax(100.0)

which makes it clear what exactly countMyCountryTax function does by looking at it and can be used as value

you could even just define it by fun and it would be clear

[Vitaliy Zarubin]

It's just for fun. Obviously. If I used currying at work, I would not be understood and what this function does too.

[Vitaliy Zarubin]

Quite realistic. Seem to be. 🙂

[Matteo Mirk]

The best curry is the vegetable biriyani one 😜