Codewars 7 Kyu Simple String Characters Javascript

Summary

this one uses the match() method and regex kata link: this one uses the isNaN() function, the Number() constructor, and more kata link: ... this one uses for loops, if statements, and more kata link: this one uses the Array() constructor, the fill() method, and more kata link: ... this one uses the split() and map() methods, and more utf-16 chart: ... this one uses the Set() constructor and the size accessor property Set() info: ... this one uses the sort() method and the conditional (ternary) operator kata link: ... this one uses the replace() method, regex this one uses the slice() method slice() info: ...