HI,
I have two map services which both services contains some layers.I want identifier for both services.How can i do it.
http://xyz:6080/arcgis/rest/services/adc/yyyy/MapServer
http://xyz:6080/arcgis/rest/services/abc/zzz/MapServer
Here's an example of using multiple services in an IdentifyTask: https://community.esri.com/message/442805?commentID=442805#comment-382158
It's old and should be updated to modern syntax, but it give you an idea of how it's done.
Veena,
The IdentifyTask is what you are looking for then. Here is a sample on using the IdentifyTask (the sample one identifies one map service layer but can easily be modified to do more like you are wanting):
Display identify results in popup | ArcGIS API for JavaScript 3.20
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