How do I get a value in Lua without using io.read()?

Question

Let’s say I have something like

a = io.read()
a = tonumber(a)
if a then
    print(a,a^2-1)
end

There’s another way to get in this driveway other than the io.read()?

Answer 1

Ready in the library is that right there. Always have several ways to get the same, but if you want to read from the console is the best way. Example:

local stdin = io.stdin:lines()
for line in stdin do
    print(line)
end

Behold working in the ideone. And in the repl it.. Also put on the Github for future reference.

If you want to read other fonts there are several other ways. There are documentation.