if you want to validate your textfield in touchUI dialog refer this:- https://aemfuel.blogspot.com/2018/06/validating-fields-in-touch-ui-dialog.html if textfield and validate button both present on page.. then textfield value can be picked up by class or id of that element on click function of valid...

Check this similar threadhttps://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/not-able-to-build-code-using-maven-command/qaq-p/359008

this  might be happening because one of your folder got corrupted.Check folderA as well, Try uploading any asset in folderA and see if that is working.Compare the properties in crxde for both folder.check the naming conventions. try giving another name to folderB.

Check this similar posthttps://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/aem-learning-references/qaq-p/371174In the comment section Nupur has provided all the important links to learn the basic of AEM.Make use of Search bar as well . Type keywords of your query in search bar ...

I suppose its possible, AEM SPA editor does not depends on number of projects. I would suggest please go through this link to get more clear understanding https://www.conexiogroup.com/aem-angular-6/

Creating custom filter or predicate might help here. Create your own predicate with that particular property by which you want to filter your search results, then while searching asset in dam choose that filter which will narrow down your results. In your case you want opposite of it then try negati...

See these similar threadshttps://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/dam-asset-references/qaq-p/166355https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/aem-search-pages-and-asset-references-in-one-result/qaq-p/250341http://experience-aem.blogspot...

If you want to send an email after publishing the page I would say use workflow, refer this. https://www.aemquickstart.in/2016/08/creating-custom-aem-workflow-steps-that.html if you still want a popup on the page after publishing page you can customize consoles refer thishttps://docs.adobe.com/conte...

Refer thesehttps://solutionpartners.adobe.com/content/dam/spp_assets/public/public_5/AD0-E102_AEM_Business_Practitioner_EG.pdf https://experienceleaguecommunities.adobe.com/t5/adobe-experience-manager/study-materials-for-aem-6-0-business-practitioner-exam/qaq-p/170602

you can use resource.getValueMap() which will give you the properties of resource in key pair form. Once you get those details return them in sling model.