When writing JavaScript code, comments are very important. They can help other developers understand the code better, and they can also make it easier for you to understand the code you write. However, it would be very cumbersome if you have to click the add comment button with the mouse every time you want to add a comment. So are there any shortcut keys that can help us add comments faster? Below, I will introduce some shortcut keys for adding comments.
1. Single-line comment
A single-line comment is to add a comment after a line of code. You can use the shortcut key Ctrl /
For the Windows operating system, we only need to comment You can add a single line comment by pressing the Ctrl and / keys on the line, as shown below:
var x = 10; //这是单行注释
For Mac operating system, we need to use the Command and / keys:
var x = 10; //这是单行注释
2. Multi-line comments
Multi-line comments are suitable for situations where the content that needs to be commented is more than one line. You can use the shortcut key Ctrl Shift /
For the Windows operating system, we only need to select a few lines of code that need to be commented, and then Press Ctrl Shift and / key to add multi-line comments, as shown below:
/* 这是多行注释 这是多行注释 这是多行注释 */ var x = 10;
For Mac operating system, we need to use Command Option and / key:
/* 这是多行注释 这是多行注释 这是多行注释 */ var x = 10;
3. Uncomment
Sometimes we need to cancel a comment. At this time, we can also use shortcut keys to complete it. The shortcut key for uncommenting is the same as the shortcut key for adding a single-line comment, namely Ctrl / (Windows) or Command / (Mac).
It should be noted that when canceling comments, only single-line comments can be cancelled, and multi-line comments cannot be cancelled.
Summary
Adding comments can help us better organize the code and make the code clearer and easier to understand. Using shortcut keys can greatly improve our coding efficiency and allow us to focus more on the code itself. The shortcut keys introduced above are available in most JavaScript editors. I hope they will be helpful to you.
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