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 Set() constructor and the size accessor property Set() info: ... this one uses the Array() constructor, the fill() method, and more kata link: ... this one uses the split() method, ternary operators, and more split() info: ... this one uses the charCodeAt(), fromCharCode(), and slice() methods kata link: ... this one uses the slice() method slice() info: ... this one uses the replace() method, regex, and more kata link: ...