Multiple Line Comments
- We can comment multiple line using “= begin” and “= cut” keyword in Perl language.
- Multiple line comment is very useful and important.
- Multiple line comment is used in perl language when we have to give comment in multiple line for same time we have used multiple line comment.
- Perl interpreter could not execute section in under multiple line comment. ...
Full Answer
How do you write comments in Perl?
Simply saying comments in Perl start with a hash symbol and run to the end of the line − Lines starting with = are interpreted as the start of a section of embedded documentation (pod), and all subsequent lines until the next =cut are ignored by the compiler. Following is the example −
What is a multi-line comment?
Multi-line comments start with = and with the =cut statement. These are special comments called POD (Plain Old Documentation). =begin comment This is another comment. And it spans multiple lines! =end comment =cut
Does the compiler ignore the (=cut) section in Perl?
The compiler ignores the (=cut) section. Given below are the examples of Perl multiline comment: Perl program to demonstrate multiline comment by specifying the beginning and end of the multiline comment section using (=begin) and (=cut) statements.
How to comment single line and multiple line in Python?
We can comment single line comment using a # sign. Hash sign is used to comment single line. We can comment multiple line using “= begin” and “= cut” keyword. It is used to make our program user friendly to the user, comments part is skipped by interpreter in and other part which was not in comments will be executed.
How to demonstrate multiline comment in Perl?
Perl program to demonstrate multiline comment by specifying the beginning and end of the multiline comment section using (=begin) and (=cut) statements.
What is a comment in Perl?
Comments are the friends of developers in any programming language that makes the program user friendly, but .the interpreter skips the part of the code containing comments. Comments do not have any impact on the functionality of the program. There are two types of comments in Perl, namely single line comment and multi-line comment where a multiline comment begins with (=begin) statement and ends with (=cut) statement, and the interpreter interprets (=begin) as the beginning of the multiline comment section and (=cut) as the end of the multiline comment section and everything between (=begin). The compiler ignores the (=cut) section.
Why are comments important in Perl?
It is used to increase the reusability of a code which is already implemented few days ago. Comments in perl is useful to enhance the comprehensibility of a program. Comments are very useful and important in perl to describe the contents of code .
What is a comment in Perl?
Perl comments is used to make our program user friendly to the user. Comments part is skipped by interpreter in perl language and other part which was not in comments will be executed. There are two types of comments available like single line comment and multiple line comment. Single line comment is used when we have to give comment only in single line, multiple line comment is used when we have to give comment of multiple lines at one time. Comment is very useful and important in language.
What are the two types of comments in Perl?
Basically there are two types of comments available in perl like single line and multiple line comment. Single line comment is used when we have to give comment only to a single line, multiple line comment is used when we have to give comment to multiple lines at one time.
When to use single line comment in Perl?
Single line comment is used in perl language when we have to give comment only in single line.
When to use multiple line comment?
Multiple line comment is used when we have given comment to a multiple line. Multiple line comment is more useful as compared to single line comment.
Can Perl interpreter execute section in multiple line comment?
Perl interpreter could not execute section in under multiple line comment. It will find “=begin” keyword after finding it will skip the execution until “= cut” keyword is not getting.
Does a comment line have to be executed by an interpreter?
In above code we have used a single line comment to every line. We have observed that comment line code was not executed by interpreter. It only executes non comment line code and display the output.
