I
On Jul 17, 2013, at 3:37 PM, Joseph Lust wrote:
> Ran into this issue on Prototype 1.5.1 and IE8.
Is there a specific reason you are using such an old (years!) version of
Prototype? 1.7.1 is current, and even it is getting a little long in the tooth.
>
> The error is in the array without() function in IE8. without() should return
> an empty array if the array sans element is empty, or the array with that
> element removed.
>
> In IE8, if there are no elements left in the array after the target element
> is removed, undefined is returned, breaking anything chained after that.
>
> remove: function(classNameToRemove) {
> if (!this.include(classNameToRemove)) return;
> this.set($A(this).without(classNameToRemove).join(' '));
> },
Are you trying to get an array of classnames from an element, or are you trying
to remove a class from an element? Because there's the Element#removeClassName
if the latter. It does pretty much what you do here, except it returns an
extended element, not an array of strings. You could get the former with this:
$(this).removeClassName(classNameToRemove).className.toString().split(/\s+/);
Walter
>
> The actual source was that without() internally uses each() to iterate across
> the elements, but the DOMAssistant library have overwritten Element.each().
> The new version could not catch the breaks that are thrown by Prototype to
> escape from deep nested iterators, and hence the error. Thus, the two libs
> should not be used in conjunction. It seems that other browsers don't
> overwrite the Element.each() method when loading the two libs like IE does.
>
>
>
> Sincerely,
> Joseph
>
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