Hi when `infix` functions are useful kotlinlang #getting-started

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Title

Ayfri

10/04/2021, 8:49 PM

Hi, when

infix

functions are useful ?

hho

10/04/2021, 9:27 PM

For creating DSLs or when you want something like an operator function, but with a new name

For example

until

is an infix function in the standard library to create a `Range`: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.ranges/until.html

🙏 2

ephemient

10/04/2021, 10:36 PM

kotlin-stdlib has lots of infix functions: for pair (

to

), range (

until

downTo

step

), collection/array (

zip

union

subtract

intersect

contentEquals

contentDeepEquals

), comparator (

then

), bitwise (

and

or

xor

shl

shr

ushr

)

and lots of other libraries have infix functions (e.g. a good chunk of the MockK and Kluent DSLs)

Ayfri

10/05/2021, 11:22 AM

@ephemient Yeah I know but in which cases should I set methods as infix ?

ephemient

10/09/2021, 10:10 AM

https://kotlinlang.org/docs/coding-conventions.html#infix-functions

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