Join allows you to join a values together so as an example in this python code.
I created a variable which is equal to 1 on 2 1 6 8.
I created another variable IP 2 which is equal to one dot 2 IP 3 is a list.
Notice when I type.
Type here.
It's a list I created a list of IP 1 and IPT but IP 4 now is actually a string at the bottom here you
can see that I created a string I'm joining IP 3 together IP 3 equals IP 1 and IP 2 based on a dot.
So notice when I print IP 4 it's equal to 1 8 2 1 6 8 1 2 2.
I've joined the 2 values in the list and made them a single string.