Missing semicolon missing semicolon Missing space before opening brace left front brace missing spaces Trailing spaces not allowed not allow trailing spaces Unexpected trailing comma unexpected trailing comma Multiple spaces found before '+' in the "+" before finding more spaces A space is after required ',' "," back space is required expected indentation of 4 spaces but found 6 is expected to be indented four spaces, found six infix operators must be spaced an infix operator must spacer 'title' is never reassigned. Use ' const 'INSTEAD "title" never reassigned. Use "const"