I did not understand this code here. Please someone help me to understand this code

[KittyKora]

I would like to answer but, i think the explanation of: snigo explains it very well
I had trouble understanding it 2 but, the part of the call stack really helped

freeCodeCamp Challenge Guide: Use Recursion to Create a Countdown

Guide to understanding recursion As it’s one of the most frequently asked questions on the forum I’ve decided to answer here, so all of you who have hard times with recursion can easily find it. Part 1. Precedence First step to understand recursion requires understanding of operator precedence in JavaScript: Operator precedence determines how operators are parsed concerning each other. Operators with higher precedence become the operands of operators with lower precedence. Source: https://d…

also @ilenia has a cool chart that explains recursion well