[Home](./index.md) > [@datashaper/schema](./schema.md) > [SetOp](./schema.setop.md) ## SetOp enum Indicates the type of set operation to perform across two collections. Signature: ```typescript export declare enum SetOp ``` ## Enumeration Members | Member | Value | Description | | --- | --- | --- | | Concat | "concat" | Concatenate the two collections together | | Difference | "difference" | Return the difference of the two collections | | Intersect | "intersect" | Return the intersection of the two collections | | Union | "union" | Return the union of the two collections |