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From: "Mel Smith" <med_cutout_syntel@aol.com>
Newsgroups: comp.lang.javascript
Subject: Debugging Errors -- a conundrum -- I think
Date: Mon, 20 Jan 2014 09:48:40 -0700
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Hi:

    I use the alert() function to track down errors in the JS/ES portions of 
my developing page.

    But, I now have an error that *disappears* if I place an alert() at the 
suspected place in the suspected function !  The error occurs in IE8 but no 
error in Chrome

    (btw, the 'suspected place' is a function that is called by 'onclick' on 
an option in a <select> element. The symptom is that I must 'click' 
successively on two different options to activate the 'click' function. 
Clicking on just one option results in a 'hang' on every other field. )

    So, I'm damned if I do use alert() and damned if I don't.   :(

Question:

    What class of errors, or type of error, or simple error, is hidden or 
covered up by using the alert() function ?

Thank you.

-- 
Mel Smith