[Home](./index.md) > [@datashaper/schema](./schema.md) > [BooleanOperator](./schema.booleanoperator.md) ## BooleanOperator enum Signature: ```typescript export declare enum BooleanOperator ``` ## Enumeration Members | Member | Value | Description | | --- | --- | --- | | AND | "and" | All conditions must match for the result to be true | | NAND | "nand" | Any number of conditions can match but not all of them for the result to be true | | NOR | "nor" | None of the conditions can match for the result to be true | | OR | "or" | Any match sets the result to true | | XNOR | "xnor" | Every pairwise comparison must be two true or two false to be true | | XOR | "xor" | Every pairwise comparison must contain one true and one false value |