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Exceptions in javascript, should they be used and how?

I have been told several times that it is "bad" to use exceptions in javascript. It was not actually said why this is bad, but, on the contrary, I have to use the gap, continue and return instead.

This is normal, except that I do not need to return / interrupt / continue, I need to quit. I have a case where I have iterator functions nested inside each other, each of which returns the next value when called, so I use an exception to indicate that there is nothing more to iterate: it seems like a logical way to do this, makes the code clean and works great in practice. Is there any reason not to use exceptions in js?

The second question, when I use exceptions, what objects should I throw? For errors, I obviously throw Error instances, but for special cases (stop iteration, etc.) I needed a quick way to check for these exceptions, and what I did just define an empty named function (StopIteration () { }), and since the functions are compared by reference, I can always check if this is really my special case, or I just have to rebook. Is there a better or more idotic way to do this in js? Should I try to reorganize my code, do not use exceptions?

thank

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4 answers

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