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Scala - How to transform an array to a string using mkString? Code Example

The code for How to transform an array to a string using mkString?

val arr = Array(10,20,30)

var result = arr.mkString
println(result)

result = arr.mkString(",")
println(result)

result = arr.mkString(" ")
println(result)

result = arr.mkString("(", ",", ")")
println(result)

/*
Output:
102030
10,20,30
10 20 30
(10,20,30)
*/