Alternative methods for creating a new structure based on an existing

newStructure.scala

/**
  * Given the following:
  */

val myArray = Array(("the", (1, 2)), ("word", (3, 4)), ("count", (5, 6)))

/**
  * How can we create a new Array such as
  *
  * Array(("the", 3), ("word", 7), ("count", 11))
  *
  */

/**
  * Let's see four alternative methods:
  *
  */

// 1
for (x <- myArray) yield (x._1, x._2._1 + x._2._2)

// 2
for {
  x <- myArray
  word = x._1
  counts = x._2
} yield (word, counts._1 + counts._2)

// 3
myArray.map(x => (x._1,  x._2._1 + x._2._2))

// 4
myArray.collect{case (word, tuple) => (word, tuple._1 + tuple._2)}