- `indexOf`/`lastIndexOf` with a literal param - `slice`/`splice` with literal params - `map`, `filter`, `sort` and `reduce` without references to something in the outer scope or some global like Date.now() - `pop` and `shift`
indexOf/lastIndexOfwith a literal paramslice/splicewith literal paramsmap,filter,sortandreducewithout references to something in the outer scope or some global like Date.now()popandshift