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Debugging Errors -- a conundrum -- I think

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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

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Thread

Debugging Errors -- a conundrum -- I think "Mel Smith" <med_cutout_syntel@aol.com> - 2014-01-20 09:48 -0700
  Re: Debugging Errors -- a conundrum -- I think Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-20 17:59 +0100
    Re: Debugging Errors -- a conundrum -- I think "Mel Smith" <med_cutout_syntel@aol.com> - 2014-01-20 10:45 -0700
      Re: Debugging Errors -- a conundrum -- I think "Mel Smith" <med_cutout_syntel@aol.com> - 2014-01-20 12:50 -0700
        Re: Debugging Errors -- a conundrum -- I think Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-20 21:01 +0100
          Re: Debugging Errors -- a conundrum -- I think "Mel Smith" <med_cutout_syntel@aol.com> - 2014-01-20 13:22 -0700
            Re: Debugging Errors -- a conundrum -- I think Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-20 21:33 +0100
              Re: Debugging Errors -- a conundrum -- I think Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-20 21:42 +0100
              Re: Debugging Errors -- a conundrum -- I think "Mel Smith" <med_cutout_syntel@aol.com> - 2014-01-20 15:33 -0700
                Re: Debugging Errors -- a conundrum -- I think "Mel Smith" <med_cutout_syntel@aol.com> - 2014-01-20 16:02 -0700
                Re: Debugging Errors -- a conundrum -- I think Christoph Michael Becker <cmbecker69@arcor.de> - 2014-01-21 00:28 +0100
                Re: Debugging Errors -- a conundrum -- I think Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-21 06:01 +0100
                Re: Debugging Errors -- a conundrum -- I think "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2014-01-21 08:47 +0100
                Re: Debugging Errors -- a conundrum -- I think Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-21 13:01 +0100
                Re: Debugging Errors -- a conundrum -- I think John Harris <niam@jghnorth.org.uk.invalid> - 2014-01-22 15:18 +0000
                Re: Debugging Errors -- a conundrum -- I think Norman Peelman <npeelman@cfl.rr.com> - 2014-01-21 06:13 -0500
                Re: Debugging Errors -- a conundrum -- I think "Mel Smith" <med_cutout_syntel@aol.com> - 2014-01-21 10:01 -0700
          Re: Debugging Errors -- a conundrum -- I think Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-01-20 21:37 +0100

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