GeoTopoJSON.md

Create new on map http://geojson.io/

GeoJSON specification https://geojson.org/

TopoJSON is an extension of GeoJSON that encodes topology.
Geometries transferred to ARCS (similar as MapShaper or ArcInfo)
Home · topojson/topojson Wiki

TopoJSON, GeoJSON, and Projections: Developing Interactive Map Visuals for Web Apps | by Griffin Poole | Better Programming

javascript - Variable Polyline Weight with GEOJSON in Leaflet - Stack Overflow

Lets make a TopoJSON map https://bost.ocks.org/mike/map/

TopoJSON Command Line Reference https://github.com/topojson/topojson/wiki/Command-Line-Reference

NPM TopoJSON Client example topojson-client - npm (npmjs.com)