Haskell Language Getting started with Haskell Language Declaring Values
Example
We can declare a series of expressions in the REPL like this:
Prelude> let x = 5
Prelude> let y = 2 * 5 + x
Prelude> let result = y * 10
Prelude> x
5
Prelude> y
15
Prelude> result
150
To declare the same values in a file we write the following:
-- demo.hs
module Demo where
-- We declare the name of our module so
-- it can be imported by name in a project.
x = 5
y = 2 * 5 + x
result = y * 10
Module names are capitalized, unlike variable names.
