Alibaba · 2019–2021
Core JS map SDK — vector tiles, layer system, marker / overlay APIs, full backward compatibility.
Real AMap JS API v2 · Shanghai · dark style, 50° pitch, 3D buildings, auto-rotation.
The core JavaScript map SDK for AMap (AMap JS API v2) — vector tiles, layer system, official layer pack, marker / overlay APIs, backward compatibility with v1.
Tiny "map kernel" — pan with drag, zoom with scroll, procedural tiles + roads + parks + markers. The API shape of the real product, in a few hundred lines.