node purehint.js [option1] [option2] ... <file1> <file2> ...
Where option can be one of:
--allow-var- ignores var declarations. Const declarations are preferred to vars
--disallow-prototype- emits errors for assignments to prototypes
--disallow-exports- emits errors for assignments to the exports object
--disallow-window- emits errors for assignments to the window object
--disallow-array- emits errors for every method call that might be an array mutator (push, pop, sort, etc). These warnings are disabled by default as they are highly speculative
--stats-only- suppresses the full log and only counts the number of errors