VSCode自动添加‘Unexpected character’字符问题求助

Hey there, let's get this frustrating problem sorted out! If VSCode keeps inserting those annoying "Unexpected character" bits every time you save—even after you delete them—here are the most effective fixes to try:

• Check your formatting plugin settings
  Chances are, a tool like Prettier, ESLint, or another formatter is misbehaving, mistakenly adding characters it thinks "fixes" your code.

  1. Open VSCode settings (Ctrl+,), search for Format On Save and toggle it off temporarily. Save your file—if the characters stop appearing, you know a formatter is the culprit.
  2. Dig into your formatter's config files (like .prettierrc or .eslintrc) to check for odd rules that might be triggering this. You can also try updating the plugin to the latest version, as bugs often get patched.

• Verify file encoding
  Wrong encoding can cause VSCode to inject unexpected characters during save.

  1. Look at the bottom-right corner of your VSCode window—you'll see the current encoding (e.g., UTF-8). Click it, then select Reopen with Encoding and choose UTF-8.
  2. If that doesn't work, try Save with Encoding > UTF-8 without BOM—the BOM (byte order mark) can sometimes cause hidden character issues.

• Fix hidden syntax errors
  VSCode's auto-fix features (like ESLint's fixOnSave) might be trying to fix a syntax issue you can't see, but botching it instead.
  Open the Problems panel (Ctrl+Shift+M) to check for any syntax warnings/errors. Fix those manually first, then save again to see if the problem goes away.

• Reset VSCode settings
  If all else fails, conflicting settings might be the root cause.
  Open the command panel (Ctrl+Shift+P), search for Preferences: Reset Settings, and reset to defaults. Just make sure to back up your custom settings.json first so you don't lose your tweaks.

• Troubleshoot extension conflicts
  Sometimes extensions clash and cause weird save behavior.
  Disable all extensions, then re-enable them one by one. After each enable, save your file—when the characters come back, you've found the problematic extension. Update it or uninstall it to resolve the issue.

内容的提问来源于stack exchange，提问作者Delowar Hosain