API Reference > geometry-core > ArraysAndInterfaces > BlockComparisonFunction BlockComparisonFunction Type alias Signature for a function which does lexical comparison of blockSize consecutive values as 2 starting indices. BlockComparisonFunction = (data: Float64Array, blockSize: number, index0: number, index1: number) => number Defined in core/geometry/src/geometry3d/GrowableFloat64Array.ts Line 19 Last Updated: 15 June, 2021