How to create an empty array in kotlin?

Question

I'm using Array(0, {i -> ""}) currently, and I would like to know if there's a better implementation such as Array()

plus, if I'm using arrayOfNulls<String>(0) as Array<String>, the compiler will alert me that this cast can never succeed. But it's the default implementation inside Array(0, {i -> ""}). Do I miss something?

Answer 1

As of late (June 2015) there is the Kotlin standard library function

public fun <T> arrayOf(vararg t: T): Array<T> 

So to create an empty array of Strings you can write

val emptyStringArray = arrayOf<String>() 

Answer 2

Just for reference, there is also emptyArray. For example,

var arr = emptyArray<String>() 

See

• doc
• Array.kt