How to compare a string with another where the one has space in between

Question

How do I compare these two string :

val a = \"fit bit versa\"
val b = \"fitbit\"

another example

val a = \"go pro hero 6\"
         


        

Answer 1

Here's one approach using sliding(i), where i ranges from 2 to word-count in a, to assemble a list of all possible concatenated adjacent words. It is then checked to see whether b exactly matches any of the elements in the list, as shown below:

def matchPattern(a: String, b: String): Boolean = {
  val words = a.toLowerCase.split("\\s+")

  val concats = (2 to words.size).foldLeft(words)(
    (acc, i) => acc ++ words.sliding(i).map(_.mkString)
  )

  concats contains b.toLowerCase
}

matchPattern("Hero go Pro 6", "gopro")
// res1: Boolean = true

matchPattern("Hero go Pro 6", "gopro6")
// res2: Boolean = true

matchPattern("Vegan protein powder", "vega")
// res3: Boolean = false