VS Code provides multi-cursor editing function to improve efficiency: hold down the Alt key and click the left mouse button to create a new cursor. Use the shortcut key Ctrl Shift L to select all matching words and create multiple cursors. Use the shortcut key Ctrl Shift ↑ / ↓ to quickly move the cursor to adjacent rows. Combining code folding and search replacement further improves efficiency. After use, be sure to check whether the modification is correct and run the code to test it. Multi-cursor editing poses a risk of confusion when processing complex code, and novices need to learn step by step.

Multi-cursor editing for VS Code: Efficiency Improvement and Potential Traps

First prepare your VS Code editor and open the code file you want to edit. VS Code's multi-cursor feature is one of its highlights, which can significantly improve coding efficiency, especially when handling repetitive tasks or requiring the same modifications in multiple locations. It allows you to insert, delete or modify text at multiple locations at the same time, avoiding the cumbersomeness of repeated operations.

After completing the above steps, enter the multi-cursor editing mode. The most common method is to hold down the Alt key ( Option key on macOS), and then click the left mouse button to create the cursor in a new position. You can also select all matching words through the shortcut keys Ctrl Shift L (Windows/Linux) or Cmd Shift L (macOS) to instantly create multiple cursors. Suppose you want to change all the variable count that appear to be counter , just select a count , and then use this shortcut key, all count will be selected, you only need to modify them at once. This is especially useful when refactoring the code.

It should be noted here that although multi-cursor editing is efficient, it is prone to errors. If you accidentally create a cursor in the wrong position, or modify content that should not be modified, it may cause code errors. Therefore, when editing with multi-cursor, be sure to carefully check your actions to make sure each cursor is in the correct position and the modified content is in line with expectations. I used to be in a large project, but accidentally selected one more variable, which caused a serious error in the program running, and it took several hours to debug it. Therefore, it is crucial to operate with caution.

At this stage, you need to be familiar with the various shortcut keys and techniques of multi-cursor operation of VS Code. For example, you can use Ctrl Shift ↑ / Ctrl Shift ↓ (Windows/Linux) or Cmd Shift ↑ / Cmd Shift ↓ (macOS) to quickly move the cursor to adjacent lines, which is very convenient when dealing with multiple lines of code. In addition, you can further improve efficiency by combining other VS Code features such as code folding and search replacement.

After completion, check that all modifications are correct. This includes carefully checking the position of each cursor and what is modified to ensure there are no omissions or errors. A good habit is to run the code for testing after editing with multiple cursors to detect potential problems as early as possible.

VS Code's multi-cursor capability is undoubtedly a powerful tool, but it is not perfect either. The disadvantage is that when processing complex code, the operation may be confusing due to the excessive number of cursors and difficult to control. For novices, it takes a certain amount of time to adapt to and master the use of it. Therefore, it is recommended to learn and use this feature step by step, and combine it with other debugging tools, such as breakpoint debugging, to ensure the correctness of the code. In short, mastering VS Code's multi-cursor editing can greatly improve your coding efficiency, but at the same time, you should also pay attention to potential risks and avoid introducing errors due to operational errors.

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