The fastest way to rename a variable in VS Code is to use the F2 shortcut keys. The specific operation is: place the cursor on the variable name, press F2, enter the new name and press Enter, VS Code will automatically update all references; Mac users use fn F2 or Option Enter by default; note that only some languages (such as JavaScript, TypeScript, Python, etc.) are supported, and language servers or plug-ins may be enabled; if the shortcut key is invalid, you can check the cursor position, language support configuration or shortcut key conflicts; you can also customize the "Rename Symbol" shortcut key through "Preferences → Keyboard Shortcuts", and test whether it takes effect after modification.
The fastest way to rename variables in VS Code is to use the default shortcut key F2 . This operation can not only help you quickly modify and change the variable name, but also automatically update all places that reference the variable, saving time and accurate.

How to use rename variable shortcut keys
You just need to place the cursor on the variable name you want to rename, press F2 , then enter the new variable name, and press Enter. VS Code will automatically update all relevant references for you.
If you are using a Mac, the default shortcut key is fn F2 or Option Enter , depending on your keyboard settings.

What should be noted is:
- Make sure you are using languages that support this feature (such as JavaScript, TypeScript, Python, etc.)
- Some languages may require enabling the language server or installing the appropriate plug-in
What if the shortcut key doesn't work?
Sometimes you will find that F2 doesn't respond, which may be because:

- The current cursor position is not on the variable name
- The language used does not support this feature, or the language is not configured correctly.
- Shortcut keys are conflicted by the system or other software (for example, the function keys of some notebooks are multimedia keys by default)
You can try the following methods to troubleshoot:
- Check whether the correct variable name is selected
- Install language-related plug-ins, such as Python, ESLint, Prettier, etc.
- Open the command panel (Ctrl Shift P), search for "Rename Symbol" to see if there are options available
- Custom shortcut keys: Go to "Preferences → Keyboard Shortcuts", search for "rename", you can view or modify the corresponding shortcut keys
How to customize shortcut keys for renaming variables
If you are not used to using F2, you can customize this shortcut:
- Open VS Code, click the gear icon in the lower left corner, and select "Keyboard Shortcuts"
- Enter "rename" in the search bar
- Find the "Rename Symbol" item
- Double-click it and enter the new shortcut key combination you want
For example, you can change it to Ctrl R, or other combinations you like. After the modification, remember to test whether it takes effect.
Basically that's it. This function is not complicated but practical, especially when refactoring the code.
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