Attempt at creating classes to serialize and write a JS API map to arcgis.com.
extras/map-cereal.js: toJSON method returns a JSON string with baseMap and operationalLayers properties. Currently, only feature layers created from a map service or feature service layer as well as graphics layers are supported. Support for additional layer types is...coming...soon. Maybe.
extras/map-writer.js: simple class to create an item in arcgis.com from a web map JSON.
extras/feature-collection-shell.js: JSON template for creating a feature collection from a graphics layer.
See index.html for links to demos. This repo isn't set up for gh-pages since the useful demos require https.
Tested in Chrome. No IE support as it relies on CORS to do a cross-domain POST to arcgis.com.