---
title: "xpc_array_apply(_:_:)"
framework: xpc
role: symbol
role_heading: Function
path: "xpc/xpc_array_apply(_:_:)"
---

# xpc_array_apply(_:_:)

Invokes the specified block for every value in the array.

## Declaration

```swift
func xpc_array_apply(_ xarray: xpc_object_t, _ applier: (Int, xpc_object_t) -> Bool) -> Bool
```

## Parameters

- `xarray`: The array object which is to be examined.
- `applier`: The block which this function applies to every element in the array.

## Return Value

Return Value A Boolean indicating whether iteration of the array completed successfully. Iteration will only fail if the applier block returns false.

## Discussion

Discussion You should not modify an array’s contents during iteration. The array indexes are iterated in order.

## See Also

### Array objects

- [XPCArray](xpc/xpcarray.md)
- [xpc_array_create(_:_:)](xpc/xpc_array_create(_:_:).md)
- [xpc_array_create_empty()](xpc/xpc_array_create_empty().md)
- [xpc_array_create_connection(_:_:)](xpc/xpc_array_create_connection(_:_:).md)
- [xpc_array_set_value(_:_:_:)](xpc/xpc_array_set_value(_:_:_:).md)
- [xpc_array_get_value(_:_:)](xpc/xpc_array_get_value(_:_:).md)
- [xpc_array_append_value(_:_:)](xpc/xpc_array_append_value(_:_:).md)
- [xpc_array_get_count(_:)](xpc/xpc_array_get_count(_:).md)
- [xpc_array_dup_fd(_:_:)](xpc/xpc_array_dup_fd(_:_:).md)
- [xpc_array_get_array(_:_:)](xpc/xpc_array_get_array(_:_:).md)
- [xpc_array_get_bool(_:_:)](xpc/xpc_array_get_bool(_:_:).md)
- [xpc_array_get_data(_:_:_:)](xpc/xpc_array_get_data(_:_:_:).md)
- [xpc_array_get_date(_:_:)](xpc/xpc_array_get_date(_:_:).md)
- [xpc_array_get_dictionary(_:_:)](xpc/xpc_array_get_dictionary(_:_:).md)
- [xpc_array_get_double(_:_:)](xpc/xpc_array_get_double(_:_:).md)