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Table of Contents
How to use shortcut keys to copy the current line?
Why not use Ctrl C/Cmd C?
Customize copy line shortcut keys
Notes and tips
Home Development Tools VSCode Duplicate line shortcut VS Code

Duplicate line shortcut VS Code

Jul 31, 2025 am 07:52 AM

How to use shortcut keys to copy the current line? VS Code provides shortcut keys for copying the current line by default, without additional configuration; Windows/Linux press Shift Alt ↓ (down) or Shift Alt ↑ (up) and Mac press Shift Option ↓ or Shift Option ↑; this function can copy a single line or multiple line selection, and the direction is determined by the arrow; compared to Ctrl C / Cmd C, it saves manual selection steps and completes copy and paste with one click; shortcut keys can be customized, search for "Duplicate Line" through the command panel to modify; when using it, please note that copying will not affect the original content of the clipboard after copying, and blank lines can also be copied and left blank.

Duplicate line shortcut VS Code

In VS Code, it is very practical to quickly copy the current line or selected multiple lines of content, and using shortcut keys can greatly improve efficiency. The most commonly used "Copy Current Line" shortcut does not require complicated configurations, mastering it can save a lot of time.

Duplicate line shortcut VS Code

How to use shortcut keys to copy the current line?

VS Code provides shortcuts to copy the current line by default, without additional plug-ins or configurations required . The operation is as follows:

  • Windows/Linux: Shift Alt ↓ (Copy down) or Shift Alt ↑ (Copy up)
  • Mac: Shift Option ↓ or Shift Option ↑

This function can not only copy a single line, but also copy multiple lines of code you selected. The copy direction is determined by the arrow.

Duplicate line shortcut VS Code

For example: If you are writing a function and want to copy a certain line of logic to the bottom for a little modification, just press Shift Alt ↓ and you will be done.


Why not use Ctrl C/Cmd C?

Although Ctrl C and Cmd C are common copy commands, they must first manually select the content. During the encoding process, many times we just want to quickly copy the current line, and do not want to move the cursor or drag the selection range.

Duplicate line shortcut VS Code

At this time, using the dedicated copy line shortcut keys will be more efficient. The action of "copy current line pasting" is completed with one click , eliminating the steps of selecting and pasting.


Customize copy line shortcut keys

If you are not used to the default shortcut keys, or if it conflicts with other software, you can easily customize:

  1. Open the command panel: Ctrl Shift P
  2. Enter "Preferences: Open Keyboard Shortcuts" and open
  3. Search keywords: "Duplicate Line"
  4. Click the pencil icon on the right to set the new shortcut key you like

For example, you can change it to a combination like Ctrl D , which is more convenient.


Notes and tips

  • If you have selected several lines of content, using the Copy Line Shortcut key will copy the entire selection and paste it in the corresponding position.
  • Using this shortcut on a blank line will also copy an empty line, which can sometimes be used to quickly leave space.
  • The original content of the clipboard will not be affected after copying, and is suitable for frequent operations.

Basically that's it. This function looks simple, but it is very frequent in daily development. After familiarity, it will make you write code more smoothly.

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