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I'm looking for some functionality beyond what ESRI already provides in the JSAPI. For example, the ability to display the LOD in a tooltip on the zoom control. It seems like there should be a dojo+jsapi answer to openlayers+geoext but I have not found it.

Can anyone point me to Any Open Source Extensions to ESRI JSAPI?

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Why not look at using OpenLayers or Leaflet? What is keeping you stuck on the JSAPI? –  James Fee Feb 21 '12 at 3:53
    
I work with OpenLayers + Dojo as well but this isn't really an answer. What would be great is a toolkit which extends both OL and JSAPI using a common interface...but that's another topic. Presently I'm looking for pre-build solutions to further enhance what ESRI + dojo already provide. _ is to JSAPI+Dojo as geoext is to OL+ExtJS. –  ca0v Feb 21 '12 at 9:15

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I would argue that the JSAPI already provides equivalent functionality to what's in GeoExt. All of the additional widgets provided by dojo are just a require statement away. It's up to you how you use them.

Here's an example of a JSAPI site that has always struck me as having a "GeoExt feel": http://uplan.utah.gov/

For your specific case of a tooltip on the zoom control, I know I've seen this on some sites in the past that do this but I'm not able to quickly find one. CrimeMapping.com kind of does this: http://www.crimemapping.com/map.aspx

And we have a sample showing how to change the zoom slider ticks: http://help.arcgis.com/en/webapi/javascript/arcgis/demos/mapconfig/mapconfig_customlabels.html

But I don't think that's what you're asking. How's this look: http://jsfiddle.net/V2E8b/

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These don't address the specific example I mentioned, which is an equal to api.geoext.org/1.1/examples/zoomslider.html nor is it any better than saying ExtJS already exists so why bother with GeoExt? There would be value in a community built extension to JSAPI...but perhaps nothing like that yet exists. Regarding your solution...It's close but was looking for a tooltip on the slider itself. I believe the solution at jsfiddle is better than the tooltip I was looking for because it puts the zoom info right on the slider. –  ca0v Feb 21 '12 at 9:27
    
I extended your solution to place the tooltip on the handle which does now address the need of the example I mentioned in the question: jsfiddle.net/V2E8b/2 But as far as I know there's no place for me to capture and share this progress with fellow JSAPI developers. –  ca0v Feb 21 '12 at 9:41
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@user2023 I'm not that familiar with GeoExt so I didn't know you were talking about a specific sample. In the future, please link to what you're talking about. Regarding sharing, arcgis.com has has a code gallery: help.arcgis.com/en/arcgisonline/help/index.html#//… There's also github... –  Derek Swingley Feb 21 '12 at 15:34

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