How to append a child component at required position/index

For example, I have a parent component and this parent component has 4 child components. Here with trait functionality, I want to move the 3rd child component to 1st position likewise.

I am able to move a component from any position to last by removing it from the existing position using component.remove() and adding it to parent using component.append(ref of removecomponent) . So it is moving to last.

Now I want to move a child component from one place to another place on trait value change

Can you give me any idea?

Thanks in Advance.