I just smoked the remaining bits haha . Thanksgiving prep yo <| sep |> Mate , step away from my fuzzy friend ! !!! Although , in all seriousness , its base speed stat is 124 3 more than Mega Pidgeot ' s and only less than Talonflame ' s ! . Combine that with Quiver Dance , and you have a fastasshit Pokmon . <| sep |> util . prototype . format is setting a property of an object that already exists specifically , every ordinary function has a prototype property , which is an object that will be the internal prototype of instances when that function is called as a constructor . You only use var before something that can be a variable name , and in particular , variable names cannot include periods . As for checking whether this is an instanceof the function , that ' s used to allow the function to be called without new and still act like a constructor another way to deal with this is to throw an error , which is similar to how ES 6 classes work .