Appletone / Mumbling-TDD-Kata

Getting started

The TDD(Test-Driven Development) practice for Xcode Swift 4.

Mumbling Kata exercise is from Codewars.

The examples below show you how to write function accum:

Examples

accum("abcd")      // -> "A-Bb-Ccc-Dddd"
accum("RqaEzty") // -> "R-Qq-Aaa-Eeee-Zzzzz-Tttttt-Yyyyyyy"
accum("cwAt")      // -> "C-Ww-Aaa-Tttt"

The parameter of accum is a string which includes only letters from a..z and A..Z.