lint or prettier staged only files

package.json

{  
    "lint" : "eslint ./",
    "lint:staged": "eslint $(git diff --cached --name-only | grep -E '\\.(js)$')",
    "lint:fix": "eslint . --fix",
    "prettier": "prettier --write '**/*.{js,json,md}'",
    "prettier:check": "prettier  --check '**/*.{js,json,md}'",
    "prettier-check:staged": "prettier  --check $(git diff --cached --name-only | grep -E '\\.(js|json|md)$')"
}