How to use the @turf/hex-grid.default function in @turf/hex-grid
To help you get started, we’ve selected a few @turf/hex-grid examples, based on popular ways it is used in public projects.
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google / earthengine-api / demos / cloud-functions / function.js View on Github 
ee.initialize(null, null, () => {
// Load an image estimating number of persons per 30 arc-second grid cell.
const image = ee.Image('CIESIN/GPWv4/population-count/2015');
// Create a hexgrid covering the viewport, with TurfJS.
const cellDiameter =
200 * Math.abs(bounds[3] - bounds[1]) / DEGREES_LATITUDE_TO_MILES;
const gridGeoJson = hexGrid(bounds, cellDiameter, 'miles');
const gridFeatures = ee.FeatureCollection(gridGeoJson.features);
// Compute sum of population values for each hex cell.
const reducedFeatures =
image.reduceRegions(gridFeatures, ee.call('Reducer.sum'));
reducedFeatures.evaluate((geojson) => res.send(geojson));
});
});
