Is it bad practice to not assign a new object to a variable?

Question

Is it bad javascript practice to not assign a newly created object to a variable if you\'re never going to access it?

For example:

for(var i=0;i

        

Answer 1

If you're not accessing it but it's still useful, that suggests that the constructor itself has visible side effects. Generally speaking, that's a bad idea.

What would change if you didn't call the constructor at all?

If your constructor is doing something to the global state, that strikes me as very bad. On the other hand, you could be using it just for the sake of validation - i.e. if the constructor returns without throwing an exception, it's okay. That's not quite so bad, but a separate method for validation would make things a lot clearer if that's the case.