Contents
- 1 How do I comment a region in Emacs?
- 2 What symbol should be used to indicate a block comment?
- 3 How do you comment out a block of code in Linux?
- 4 What are the symbols used for comments?
- 5 How do you comment on a block of code?
- 6 Is there a way to uncomment a block of code?
- 7 How to remove a block of comments in Eclipse?
How do I comment a region in Emacs?
In emacs, you can use M-x comment-region and M-x uncomment-region . The comment-region method bound to key M-; . You can select region using marker and then use M-; to comment/uncomment.
What symbol should be used to indicate a block comment?
Everything from the // to the end of the line is a comment. To mark an entire region as a comment, use /* to start the comment and */ to end the comment. * This is a block comment.
How do you mark comments in code?
Line comments either start with a comment delimiter and continue until the end of the line, or in some cases, start at a specific column (character line offset) in the source code, and continue until the end of the line. Some programming languages employ both block and line comments with different comment delimiters.
How do you comment out a block of code in Linux?
To comment out blocks in vim: press Esc (to leave editing or other mode) hit ctrl + v (visual block mode) use the ↑ / ↓ arrow keys to select lines you want (it won’t highlight everything – it’s OK!) Shift + i (capital I)
What are the symbols used for comments?
Comment symbols. Two ampersands (&&) can also be used for an end-of-line comment, but they are usually seen in older code. If an asterisk (*) is the first character in a statement, the entire line is considered a comment.
What symbol is used to comment lines?
‘#’ is used to comment a line.
How do you comment on a block of code?
On the main menu, choose Code | Comment with Line Comment. Press Ctrl+/. To add or remove a block comment, do one of the following: On the main menu, choose Code | Comment with Block Comment.
Is there a way to uncomment a block of code?
An alternative way to comment any block of code is to select it, press Alt+Enter and choose Comment selection. The same way works for uncommenting code inside a block comment – set the caret anywhere in the block comment, press Alt+Enter and choose Uncomment.
How to add or remove a block comment in Microsoft Excel?
Do one of the following: On the main menu, choose Code | Comment with Line Comment. Press Ctrl+/. To add or remove a block comment, do one of the following: On the main menu, choose Code | Comment with Block Comment. Press Ctrl+Shift+/.
How to remove a block of comments in Eclipse?
Ctrl – \\ will remove a block of either comment, but won’t add comments. Note: As for Eclipse CDT 4.4.2, Ctrl – Shift – / will not uncomment a “/* */” block comment. Use Ctrl – Shift – \\ in that case. EDIT: It’s Ctrl on a PC, but on a Mac the shortcuts may all be Cmd instead. I don’t have a Mac myself, so can’t easily check.