in lib/h3core.js [1015:1024]
export function gridRingUnsafe(h3Index, ringSize) {
const maxCount = ringSize === 0 ? 1 : 6 * ringSize;
const hexagons = C._calloc(maxCount, SZ_H3INDEX);
try {
throwIfError(H3.gridRingUnsafe(...h3IndexToSplitLong(h3Index), ringSize, hexagons));
return readArrayOfH3Indexes(hexagons, maxCount);
} finally {
C._free(hexagons);
}
}