What is the purpose of a local function?

I've never truly understood what differentiates a local function from a normal function, and when it is appropriate to use one or the other.

There's not much of a difference. All the local statement does is declare a local variable. local variables do not carry between functions, for statements and if statements.

If i were to run this code it would print false since the if statement it changes c locally.

local c = false
if true then
local c = true
end
print(c)

The same thing with functions if i ran this code it would output hi.

local c = function()
	print("hi")
end

if true then
	local c = function()
		print("bye")
	end
end
c()

If i were to run this code it would output bye since the if statement doesn't declare it locally.

oof = function()
	print("hi")
end

if true then
	oof = function()
		print("bye")
	end
end

oof()

-ThisIsAnAccount255