FirebaseFirestore Framework Reference

DistanceMeasure

public struct DistanceMeasure : Sendable, Equatable, Hashable

Represents the distance measure to be used in a vector similarity search.

euclidean
The Euclidean distance measure.
Declaration
Swift

public static let euclidean: DistanceMeasure
cosine
The Cosine distance measure.
Declaration
Swift

public static let cosine: DistanceMeasure
dotProduct
The Dot Product distance measure.
Declaration
Swift

public static let dotProduct: DistanceMeasure

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Last updated 2026-01-13 UTC.