commonSuffixWith  
  Returns the longest string suffix such that this char sequence and other char sequence both end with this suffix, taking care not to split surrogate pairs. If this and other have no common suffix, returns the empty string.
Since Kotlin
1.0Parameters
ignoreCase 
true to ignore character case when matching a character. By default false.
Samples
import java.util.Locale
import kotlin.test.*
fun main() { 
   //sampleStart 
   println("Hot_Tea".commonSuffixWith("iced_tea")) // ea
println("Hot_Tea".commonSuffixWith("iced_tea", true)) // _Tea
println("Hot_Tea".commonSuffixWith("Hot_Coffee")) // 
   //sampleEnd
}