geodev-hackerlabs

Here are the 3.x versions of the Develop labs.

• Build a Starter Map
• Add Feature Layer
• Add Vector Tile Layer
• Style Feature Layer
• Style Feature Layer with JSON
• Style a layer popup
• Add GeoJSON Layer
• Search with a Widget
• Search with a Query Task
• Client-side Buffering
• Client-side Buffering with UI
• Smart Mapping
• Search with HTML5 Location
• Create a JS API 3.x WebMap App

You can see a high-level overview of the differences between the 3.x and 4.x JS APIs here and a more detailed comparison here.