API Reference > geometry-core > ArraysAndInterfaces > GrowableBlockedArray > compareLexicalBlock compareLexicalBlock MethodStatic compare two blocks in simple lexical order. compareLexicalBlock(data: Float64Array, blockSize: number, ia: number, ib: number): number Parameter Type Description data Float64Array data array blockSize number number of items to compare ia number raw index (not block index) of first block ib number raw index (not block index) of second block Returns - number Defined in core/geometry/src/geometry3d/GrowableBlockedArray.ts Line 113 Last Updated: 15 June, 2021