mapbox-extensions (npm): [![npm](https://img.shields.io/npm/v/mapbox-extensions)](https://www.npmjs.com/package/mapbox-extensions)    mapboxgl controls : measure、switch map、switch layers、doodle、back ...  ## DEMO  [examples](https://cocaine-coder.github.io/mapbox-extensions/exampl
Keywords: layer-group|mapbox|mapbox-gl-js|measure|styles