Codewars 7 Kyu Arithmetic Progression Javascript

Summary

this one uses the join() method join() info: ... this one uses the map() and split() methods kata link: this one uses a switch statement kata link: this one uses the Set() constructor, the sort() method, and more spread syntax (. this one uses the Array.from() method and the ternary operator kata link: ... this one uses the String() constructor, spread syntax(...), and more kata link: ... this one uses a for loop, the reduce() method, and more kata link: ... this one uses the reduce() method and the ternary operator kata link: ... this one uses the toLowerCase() method, the Set() constructor and the .size accessor property kata link: ... this one uses a while loop, the Array.from() method, and more kata link: ...