Can somebody explain to me what "In pairs", does and how to use it?

Can somebody explain to me what "In pairs", does and how to use it?

Okay well first you need to know whats "Pairs" is... Pairs iterates through tables.

for example

a={"This","is","an","Example"}

for k,v in pairs(a) do
	
print(v)	
	
end

-a is your table

-k is the key

-v is the value

-pairs(a) iterates through the table a

that is an example for using a generic for, it's very simple to get more detailed information on it I recommend thoroughly reading through the article on the Roblox Wiki.

The Link is: http://wiki.roblox.com/index.php?title=Function_dump/Basic_functions#pairs