[Home](./index.md) > [@datashaper/schema](./schema.md) > [Criterion](./schema.criterion.md) > [operator](./schema.criterion.operator.md) ## Criterion.operator property Filter operator to execute. Note the correct operator for the column data type must be used. Signature: ```typescript operator: NumericComparisonOperator | StringComparisonOperator | BooleanComparisonOperator | DateComparisonOperator; ```