I want to build a custom 2D widget from scratch for use with a web map, but I am confused about which JavaScript API to use. I noticed there is a 3.x version and a 4.x version. I also noticed that the 3.x version has references to jimu and dojo in the example code, but it doesn't look like 4.x does according to the 4.x documentation. I am trying to learn based on the tutorial at this link: Create a custom in-panel widget—ArcGIS Web AppBuilder (Developer Edition) | ArcGIS for Developers My questions are:
Not really. If you want to move to the next generation then don't look at WAB anymore and start using Experience Builder (which is all 4.x API, both 2D and 3D).
Thank you Robert, that's really helpful. I read that ESRI is going to retire 3.x in 2022. Is it possible to build 2D apps using 4.x that can do the same stuff as 3.x for the sake of staying current?
Not really. If you want to move to the next generation then don't look at WAB anymore and start using Experience Builder (which is all 4.x API, both 2D and 3D).
