[Home](./index.md) > [rc-js-util](./rc-js-util.md) > [arrayIntersect](./rc-js-util.arrayintersect.md) ## arrayIntersect() function Given two `ArrayLike`, provides the items common between them in an `Array`. **Signature:** ```typescript export declare function arrayIntersect(a: ArrayLike, b: ArrayLike, getComparisonValue?: (item: TItem, index: number) => unknown): TItem[]; ``` ## Parameters

Parameter	Type	Description
a	ArrayLike<TItem>
b	ArrayLike<TItem>
getComparisonValue	(item: TItem, index: number) => unknown	_(Optional)_

**Returns:** TItem\[\] ## Remarks See [arrayIntersect()](./rc-js-util.arrayintersect.md).