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Groups > comp.lang.javascript > #26749

Re: Problem determining iFrame source url ...

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Tim Streater wrote:

> In article <c47f984c-b560-4c77-ac64-09a08a43ada7@googlegroups.com>,
> sean mc <seanmc1217@gmail.com> wrote:
> 
>> below, it works fine....sort of... :
>> --------------------------------------------------------
>> <script type="text/javascript">
>> function ChangeSrc() {
>>  var frames = Array('splash.html', 4,
>>      'data.html');
>>  var i = 0, len = frames.length;
>>  document.getElementById('data_frame').src = frames[i++];
>>  if (i >= len) return; // no more changing
>>  setTimeout('ChangeSrc()', (frames[i++]*1000));
>> //}
>>
>> window.onload = ChangeSrc;
>> </script>
>> --------------------------------------------------------
> 
> In this function, i is declared (var i = 0), incremented (by the i++),
> and then compared with len.
> 
> I can't see why i would ever have a value other than 1 when this
> statement:
> 
>  if (i >= len) return; // no more changing
> 
> is executed. The same is true of your function. So what is the point of
> the variable i or indeed the test to compare with len ??

I guess that i is supposed to be declared outside of ChangeSrc().
However, as the code has a syntax error anyway (the function body is not
terminated with }), all bets are off -- and certainly, it does not work
fine.

-- 
Christoph M. Becker

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Thread

Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-29 05:20 -0800
  Re: Problem determining iFrame source url ... Tim Streater <timstreater@greenbee.net> - 2015-01-29 13:39 +0000
    Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-29 05:58 -0800
    Re: Problem determining iFrame source url ... "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-01-29 15:04 +0100
      Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-29 06:25 -0800
        Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-29 06:31 -0800
        Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-29 08:09 -0800
  Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-29 08:22 -0800
  Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-29 16:14 -0800
    Re: Problem determining iFrame source url ... "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-01-30 10:25 +0100
      Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-30 06:53 -0800
  Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-30 12:45 -0800
    Re: Problem determining iFrame source url ... "Evertjan." <exxjxw.hannivoort@inter.nl.net> - 2015-01-30 23:25 +0100
      Re: Problem determining iFrame source url ... "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-01-30 23:57 +0100
        Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-30 17:53 -0800
      Re: Problem determining iFrame source url ... sean mc <seanmc1217@gmail.com> - 2015-01-30 17:59 -0800

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