How to check whether a String fully matches a Regex in Scala?

Question

Assume I have a Regex pattern I want to match many Strings to.

val Digit = \"\"\"\\d\"\"\".r

I just want to check whether a given String fu

Answer 1

  """\d""".r.unapplySeq("5").isDefined            //> res1: Boolean = true
  """\d""".r.unapplySeq("a").isDefined            //> res2: Boolean = false