yo @microsoft/sharepoint
spfx-fast-serve
npm install react react-dom leaflet
npm i @spfxappdev/utility
npm i
npm install react-leaflet
npm install -D @types/leaflet
npm run serve
gulp serve
npm run serve
npm install -D @types/leaflet babel-loader @babel/core @babel/preset-env @babel/plugin-proposal-nullish-coalescing-operator
npm run serve
exit
npm run serve
npm install @pnp/spfx-controls-react --save --save-exact
npm run serve
exit
npm i react-leaflet-markercluster
npm run serve
npm install @pnp/spfx-property-controls --save --save-exact
npm run serve
gulp clean; gulp build; gulp bundle --ship; gulp package-solution --ship;
npm run serve
exit
npm run serve
gulp clean; gulp build; gulp bundle --ship; gulp package-solution --ship;
npm run serve
gulp clean; gulp build; gulp bundle --ship; gulp package-solution --ship;
exit