If one forgets the (parentheses) you may or may not immediate or later can an error _somewhere_. It isn't about the workaround -- it's about all the subtle bug

If one forgets the (parentheses) you may or may not immediate or later can an error _somewhere_. It isn't about the workaround -- it's about all the subtle bugs it will introduce in the edge-cases, for example: f => () => {} f(); // undefined instead of empty object