Dart comments are a set of statements that are not executed by the Dart compiler. They are meant for other programmers to understand the source code and provide documentation of the Dart program.
In Dart programming language, there are three types of comments:
- Dart Single-line comment
- Dart Multiline Comment
- Dart Documentation Comment
Single line comment
A single-line comment is used to comment until the line break occurs. This is denoted by two forward slashes(//) as shown in the picture.
This type of comment is also known as the Line Comment.
A multiline comment is used to comment out a block of code that might include multiple lines. This type of comment is also known as the Block Comment.
This comment is denoted by /* and */
/* denotes the beginning of the multi-line comment.
*/ denotes the end of the multi-line comment.
Documentation comments are special comments used to provide explanatory information about code elements such as classes, packages, methods, functions, and variables. These comments follow a specific format and can be extracted to generate documentation for the source code.
Dart programming language supports two types of documentation comments:
- C# (///)
- JavaDoc (/**…../)
/// This is a documentation comment in Dart
Dart documentation comments can also include special tags and references to other code elements. For example, you can use @param to describe a parameter and @returns to describe the return value.
To generate documentation from your code, you can use tools like dartdoc, which can parse your documentation comments and create HTML documentation files.
It’s important to note that comments in the code are not mandatory, but they are considered good practice for creating clear and self-explanatory source code.
More information on the Dart programming language at: