Returns a join that pairs elements from the primary collection with matching elements from the secondary collection. Each result has a 'primary' property that contains the element from the primary collection, and a 'secondary' property containing the matching element from the secondary collection. If measureKey is specified, the join measure is also attached to the object as a property.
ee.Join.inner(primaryKey, secondaryKey, measureKey)
|String, default: "primary"||The property name used to save the primary match.|
|String, default: "secondary"||The property name used to save the secondary match.|
|String, default: null||An optional property name used to save the measure of the join condition.|