You pass a function to map and filter as well, so they are also able to change the state of the object. Obviously, it's a bad practice to do so but still possible.
You have to reassign e.g. arr = arr.map(x=>x**x), since arr.map(x=>x*x) won't change arr itself, it is new array, same as .filter.
Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink.
Hide child comments as well
Confirm
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
You pass a function to map and filter as well, so they are also able to change the state of the object. Obviously, it's a bad practice to do so but still possible.
You have to reassign e.g. arr = arr.map(x=>x**x), since arr.map(x=>x*x) won't change arr itself, it is new array, same as .filter.