ee.Join.inner

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.

Usage	Returns
ee.Join.inner(primaryKey, secondaryKey, measureKey)	Join

Argument	Type	Details
primaryKey	String, default: "primary"	The property name used to save the primary match.
secondaryKey	String, default: "secondary"	The property name used to save the secondary match.
measureKey	String, default: null	An optional property name used to save the measure of the join condition.