When you want to help others by providing the information about a code, then you must use the comments in that code.
Just like other programming or scripting languages, you can give the comments in a PowerShell for the documentation purpose.
In PowerShell, there are two types of comments:
Single line comment
Single line comments are those comments in which you can type a hash symbol # at the beginning of each line. Everything to the right of the hash symbol will be ignored. If you write the multiple lines in a script, you had to use the hash # symbol at the starting of each line.
Syntax of Single line comment
The following are the two syntaxes for the single-line comment:
Example1: This example displays how to use the comment at the end of a line
Example2: This example displays how to use the comment before the code and at the end of any statement.
2 4 6 8 10
Multiple line comment
With PowerShell 2.0 or above, multiple line comments or block comments have been introduced. To comment the multiple lines, put the <# symbol at the beginning of the first line and #> symbol at the end of the last line.
Syntax of multiple line comment
The following block displays the syntax of multiple line comment:
Example: The following example describes how to use the multiple line comment in code.
Type the following command to display the output of above example:
PS C:\> $fact 120