I'm playing around with different design patterns in Javascript. This factory has got me confused -

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I am playing with different JS design patterns, and I am trying to modify some samples there. An example of an Exhaor factory was seen, in which there were many nested attempts / catching statements that were nested inside each 

  try {...} catch (e) {try {...} hold (e) {}}

I thought I was a I can do self-acting work. Although it seems that I have not got this as how it should work. Does anyone have any advice?

Example:

[Update] :

Close the case.

Try to loop in: 

 for  (var i = 0, l = instances.length; i & lt; l; i ++) {try {var obj = example [i] .getInstance (); Examples of return [i]; } Hold (e) {}}


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