remove duplicate lines vscode

as-keyboard-shortcut.md

Preferences: Open Keyboard Shortcuts (JSON)

Add something like this:

// removes duplicate lines: find ^(.+)(?:\r?\n\1)+$ → replace $1
{
  "key": "ctrl+alt+d",
  "command": "actions.findWithArgs",
  "args": {
    "searchString": "^(.+)(?:\\r?\\n\\1)+$",
    "replaceString": "$1",
    "isRegex": true,
    "triggerReplace": true
  }
}

Reload, then hit Ctrl + Alt + D to instantly open Find with your regex/replace pre-filled.

remove duplicate lines vscode.md

Steps

1. Search for ^(.+)(?:\r?\n\1)+$
2. Replace with $1
3. Replace all