Codewars Javascript Add New Item

Summary

Code along with me as we solve ' spread operation and concatenation in this episode kata link: this one uses the push() method push() info: ... In this short video, we tackle the simple problem of Implement the function unique_in_order which takes as argument a sequence and returns a list of this one uses the trim() method trim() info: ... this one uses Math.abs() and indexOf() Math.abs() info: ... this one uses for loops, the Array() constructor, and the fill() method kata link: ... this one uses a for loop, some if statements, and the slice() method kata link: ...