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Code performance help please ( Google Maps InfoBubble)

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  Code performance help please ( Google Maps InfoBubble) Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2015-08-26 18:26 +0800

#28572 — Code performance help please ( Google Maps InfoBubble)

Hi,

WRT: - 
https://code.google.com/p/google-maps-utility-library-v3/source/browse/trunk/infobubble/src/infobubble.js?r=356

I'm desperate to improve instantiation time for all browsers but 
especially (you guessed it) IE. It's the worst.

IE is at least 5 times as slow as any other browser (please NO "just use 
the others" recommendations") but all browsers are slow and I can't see why.

What I have done so far: -

1) In my calling code I tested storing the resulting infobubbles in a 
variable rather than my 2 dimensional Array Label Database - No 
difference. Array growth/population not an issue.

2) Change the InfoBubble code to not add a CSS StyleSheet for EVERY 
instance. This shaved about 15% off, so worthwhile but no biggie.

3) I thought I was onto a winner with InfoBubble.prototype.extend. 
Surely copying every attribute could explain the performance differences 
with all the MS crap? Sadly No. I replaced the Extend() method with a 
one off InfoBubble.prototype = new google.maps.OverlayView(); and it 
didn't amount to a hill o' beans.

So there you have it :-(

The only time I've seen performance like this was with trying to 
build-up and tear-down collections (like for a Select) rather than newUp 
an collection and replace it as a child.

It has to be some DOM manipulation but I just can see it :-(

Does anyone (except Wankers in Pajamas W1 and W2) have any useful 
suggestions/recommendations?

BTW. The definition of "slow" here is 150 infoBubbles can take 13 
seconds to instantiate. (While other work going on)

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