Why avoid increment ("++") and decrement ("--") operators in JavaScript?

My view is to always use ++ and -- by themselves on a single line, as in:

i++;array[i] = foo;

instead of

array[++i] = foo;

Anything beyond that can be confusing to some programmers and is just not worth it in my view. For loops are an exception, as the use of the increment operator is idiomatic and thus always clear.

I'm frankly confused by that advice. Part of me wonders if it has more to do with a lack of experience (perceived or actual) with javascript coders.

I can see how someone just "hacking" away at some sample code could make an innocent mistake with ++ and --, but I don't see why an experienced professional would avoid them.

There is a history in C of doing things like:

while (*a++ = *b++);

to copy a string, perhaps this is the source of the excessive trickery he is referring to.

And there's always the question of what

++i = i++;

or

i = i++ + ++i;

actually do. It's defined in some languages, and in other's there's no guarantee what will happen.

Those examples aside, I don't think there's anything more idiomatic than a for loop that uses ++ to increment. In some cases you could get away with a foreach loop, or a while loop that checked a different condtion. But contorting your code to try and avoid using incrementing is ridiculous.