Good point So I just have to list all the array variants tha

Question

Good point So I just have to list all the array variants that Kotlin supports Would be a nice candidate for the stdlib Thanks for your help

miha-x64 · Answer

nkiesel Don t forget that array can contain an array and `Arrays toString arrayOf intArrayOf 0 ` will look ugly

orangy · Answer

thanks < miha x64> it should be indeed recursive ``` fun pretty a Any String = when a is IntArray gt a joinToString pretty it is DoubleArray gt a joinToString pretty it else gt a toString ```

nkiesel · Answer

Yes it s not that simple Is it ever I ll try to come up with something reasonable for nested arrays

orangy · Answer

< nkiesel> see above

nkiesel · Answer

yeah Nice

nkiesel · Answer

Latest last iteration using `Any ` adding ` ` and enumerating all types from stdlib ``` fun pretty a Any String = when a is Array lt gt gt a joinToString prefix = postfix = pretty it is ByteArray gt a joinToString prefix = postfix = pretty it is ShortArray gt a joinToString prefix = postfix = pretty it is IntArray gt a joinToString prefix = postfix = pretty it is LongArray gt a joinToString prefix = postfix = pretty it is FloatArray gt a joinToString prefix = postfix = pretty it is DoubleArray gt a joinToString prefix = postfix = pretty it is BooleanArray gt a joinToString prefix = postfix = pretty it is CharArray gt a joinToString prefix = postfix = pretty it is Iterable lt gt gt a joinToString prefix = postfix = pretty it else gt a toString ```

orangy · Answer

japanese ogre

jakiej · Answer

can t you just use `a class java isArray`

nkiesel · Answer

Don t think so because I do not believe Kotlin will infer a smart cast from that remember that these `joinToString` are extension functions Thus they do need the correct static type in order to work

miha-x64 · Answer

< jakiej> with no smart cast you can do ~a stupid cast~ an ordinary cast but there are 9 array types in JVM so you need also `getComponentType ` simple smile

jakiej · Answer

my bad didn t realize those were extension functions so you have this many extension functions as well scream

nkiesel · Answer

My understanding is that with Kotlin 1 1 I m using 1 0 6 I could simplify the code to ``` fun pretty a Any String = when a is Array lt gt is ByteArray is ShortArray is IntArray gt is LongArray is FloatArray is DoubleArray is BooleanArray is CharArray is Iterable lt gt gt a joinToString prefix = postfix = pretty it else gt a toString ``` Is that correct

orangy · Answer

No Though type check will work and in 1 0 x also type of `a` would be `Any` and you can t call `joinToString` on it

nkiesel · Answer

Ahh So the smart cast casts to the common supertype of all the or ed options makes sense