(async () => { const topology = await fetch( 'https://code.highcharts.com/mapdata/countries/ch/ch-all.topo.json' ).then(response => response.json()); // Prepare demo data. The data is joined to map using value of 'hc-key' // property by default. See API docs for 'joinBy' for more info on linking // data and map. const data = [ ['ch-fr', 10], ['ch-lu', 11], ['ch-ni', 12], ['ch-vs', 13], ['ch-sg', 14], ['ch-ar', 15], ['ch-ti', 16], ['ch-gl', 17], ['ch-gr', 18], ['ch-sz', 19], ['ch-tg', 20], ['ch-sh', 21], ['ch-ur', 22], ['ch-zh', 23], ['ch-zg', 24], ['ch-vd', 25], ['ch-bl', 26], ['ch-be', 27], ['ch-bs', 28], ['ch-so', 29], ['ch-nw', 30], ['ch-ai', 31], ['ch-ge', 32], ['ch-ju', 33], ['ch-ne', 34], ['ch-ag', 35] ];

(async () => { const topology = await fetch( 'https://code.highcharts.com/mapdata/countries/ch/ch-all.topo.json' ).then(response => response.json()); // Prepare demo data. The data is joined to map using value of 'hc-key' // property by default. See API docs for 'joinBy' for more info on linking // data and map. const data = [ ['ch-fr', 10], ['ch-lu', 11], ['ch-ni', 12], ['ch-vs', 13], ['ch-sg', 14], ['ch-ar', 15], ['ch-ti', 16], ['ch-gl', 17], ['ch-gr', 18], ['ch-sz', 19], ['ch-tg', 20], ['ch-sh', 21], ['ch-ur', 22], ['ch-zh', 23], ['ch-zg', 24], ['ch-vd', 25], ['ch-bl', 26], ['ch-be', 27], ['ch-bs', 28], ['ch-so', 29], ['ch-nw', 30], ['ch-ai', 31], ['ch-ge', 32], ['ch-ju', 33], ['ch-ne', 34], ['ch-ag', 35] ];