What is PolyK.js? PolyK.js is JavaScript tool for working with polygons. It uses several basic principles to be super simple and super universal: No classes. PolyK.js does not have any classes or special data structures. PolyK consists of static functions only. What is polygon? For PolyK, polygon is an array of numbers. Each two of them are X and Y coordinate of polygon vertex. Simplicity and spee