Listing directories as a tree without the help of recursion?

Question

JavaScript

Hello, I'm having a problem displaying product categories for my online store.
There is a table with categories like:
id | name | parentId
1 computers 0
2 laptops 1
3 tablets 1
4 clothes 0
5 jeans 4
....
Category nesting is unlimited. So, is it possible to make the output of this table in the form of a tree, without the help of recursion?

Answer 1

Working with trees includes mandatory work with recursion, otherwise you are threatened with -100500 points to karma.

Answer 2

1. Find out the maximum parentId
2. Loop from zero to parentId collect a new array
- first the zero level
- then already nested in it
3. Output a new array

Answer 3

No recursion, only nested set model.