util

class Random extends AnyRef

The Random class provides methods to generate pseudorandom numbers via Marsaglia Xorshift PRNGs, which use simple exclusive-or and bit-shift operations to generate these numbers extremely quickly over long cycles.

object Concat extends LowPriorityConcatImplicits

Provides a way to append two arrays of possibly different types together by intelligently promoting primitive types where possible.
object Random
def buildStr(count: Int, total: Int, callback: (Int) ⇒ String, break: ⇒ String = " ... "): String

Creates a string out of count number of elements extracted from total elements between offsets [0 .
Creates a string out of count number of elements extracted from total elements between offsets [0 ... count / 2) and (total - count / 2 ... total), using a callback that generates a string at each offset, and inserting a break string if count > total.
count
Number of elements to print
total
Total number of elements in sequence
callback
Generates a string at each offset
break
Produces a string to insert as a break
def grab[T](arr: Seq[T], n: Int): Seq[T]

Takes n elements from the front and from the back of array
Takes n elements from the front and from the back of array
arr
Array
n
Number of elements to take