How to setValue a complex FormArray reactive form

To setValue a complex FormArray in a reactive form, you need to follow these steps:

1. First, create a FormArray object within your FormGroup. A FormArray is a data structure that represents an array of form controls.
2. First, create a FormArray object within your FormGroup. A FormArray is a data structure that represents an array of form controls.
3. Next, define the structure and initial values of the complex FormArray.
4. Next, define the structure and initial values of the complex FormArray.
5. Now, to update the values of the complex FormArray, you can use the setValue method.
6. Now, to update the values of the complex FormArray, you can use the setValue method.

By following these steps, you can setValue a complex FormArray in a reactive form. Remember to update the structure and values according to your specific requirements.

请注意，这里所给出的答案是基于Angular框架的，如果你使用其他框架或库，可能会有所不同。