newline-before-return

has auto-fix

free+

Enforces a blank line between statements and returns in a block.

❌ Bad:

if ( ... ) {
  ...
  return ...; // LINT: Missing a blank line before 'return'.
}

✅ Good:

if ( ... ) {
  return ...;
}

if ( ... ) {
  ...

  return ...;
}