Codewars 6 Kyu Unique In Order Javascript

Summary

this one uses spread syntax (...) and the filter() method kata link: ... this one uses the split() and map() methods and more kata link: ... this one uses a for loop, some if statements, and the slice() method kata link: ... this one uses the Array.from() method and the ternary operator kata link: ... this one uses the Set() constructor and the size accessor property Set() info: ... this one uses the String() constructor, spread syntax (...), and more kata link: ... this one uses the reduce() method kata link: this one uses the ternary operator and template literals kata link: ternary operator info: ...