Codewars 7 Kyu Changing Letters Javascript

Summary

this one uses the map() and join() methods map() info: ... this one uses the charCodeAt(), fromCharCode(), and slice() methods kata link: ... this one uses the concat() method, spread syntax (...), and more concat() info: ... this one uses a double for loop, the map() method, and more kata link: ... this one uses the split(), map(), and join() methods and more split() info: ... this one uses double for loops, the this one uses a for loop, the reduce() method, and more kata link: ... this one uses the String() constructor, a conditional operator, and template literals kata link: ... this one uses the UTF-16 code chart, the reduce() method, and more kata link: ... this one uses spread syntax (...) kata link: