How to resolve the algorithm Comments step by step in the Haskell programming language
How to resolve the algorithm Comments step by step in the Haskell programming language
Table of Contents
Problem Statement
Show all ways to include text in a language source file that's completely ignored by the compiler or interpreter.
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Comments step by step in the Haskell programming language
The provided Haskell program contains several different types of comments:
-
Single-line comments: These comments start with two hyphens (
--
) and extend until the end of the line. They are used to comment out small amounts of code, such as the first line in the provided code. -
Multi-line block comments: These comments start with
{-
and end with-}
. They can be used to comment out multiple lines of code, such as the second comment in the provided code. -
Haddock documentation comments: These comments start with
-- |
and are used to generate documentation for the code. The documentation comments in the provided code are used to describe the functioni
, its input and output, and its purpose.
Here is a breakdown of each comment in the provided code:
-
i code = True
is a single-line comment that simply states that thei
function always returnsTrue
. -
{- I am also\n a comment. {-comments can be nested-} \n let u x = x x (this code not compiled) \n Are you? -}
is a multi-line block comment that contains a nested comment, as well as some code that will not compile. -
-- |This is a Haddock documentation comment for the following code
is a Haddock documentation comment that describes the following code. -
i code = True
is the code that is being documented by the previous comment. -
-- ^This is a Haddock documentation comment for the preceding code
is a Haddock documentation comment that describes the preceding code. -
{-| \n This is a Haddock documentation block comment -}
is a Haddock documentation block comment that describes the following code. -
i code = True
is the code that is being documented by the previous block comment.
Source code in the haskell programming language
i code = True -- I am a comment.
{- I am also
a comment. {-comments can be nested-}
let u x = x x (this code not compiled)
Are you? -}
-- |This is a Haddock documentation comment for the following code
i code = True
-- ^This is a Haddock documentation comment for the preceding code
{-|
This is a Haddock documentation block comment
-}
i code = True
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