I learned from 'Build Your Own React' and encountered problems in building Fiber

[Huangqye]

in step 4 Fiber, prevSibling.sibling = newFiber;, fiber is the argument and prevSibling is the variable inside the function. How does the sibling come into fiber? Thank you.

[shadowvzs]

there is a while loop, inside that while loop was setted far as i see :)

[Huangqye]

there is a while loop, inside that while loop was setted far as i see :)

Thank you for your reply. I really want to know how fiber can bind the sibling?

[Akarinx]

first loop: fiber.child = newFiber, prevFiber = newFiber . fiber -> child -> newFiber;
next loop: prevFiber.sibling = nextNewFiber , fiber -> child -> newFiber -> sibling ->nextNewFiber

[electroluxcode]

To be honest, I don't think the author's approach is easy to understand. My treatment of sibling is
if (i == 0) { fiber.children = newFiber } else { fiber.sibling = newFiber }
Specific can refer to:https://codepen.io/yilaikesi/pen/xxaYqLQ