# filterFn_includesString

# Variable: filterFn\_includesString

```ts
const filterFn_includesString: FilterFn<any, any>;
```

Defined in: [fns/filterFns.ts:63](https://github.com/TanStack/table/blob/main/packages/table-core/src/fns/filterFns.ts#L63)

Filter function for checking if a string includes a given substring. (Non-case-sensitive)