ee.ImageCollection.union

Merges all geometries in a given collection into one and returns a collection containing a single feature with only an ID of 'union_result' and a geometry.
Usage Returns
ImageCollection. union ( maxError ) FeatureCollection
Argument Type Details
this: collection
FeatureCollection The collection being merged.
maxError
ErrorMargin, default: null The maximum error allowed when performing any necessary reprojections. If not specified, defaults to the error margin requested from the output.
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