charlypoly · November 29, 2021 11:31
diff --git a/retool-typescript-control-flow-analysis-16.ts b/retool-typescript-control-flow-analysis-16.ts
 interface Person {
  name: string
  address?: {
    city: string
    zipcode: string
  }
 }

 const p: Person = { name: "John" }

 p.address
 // `p.address` is of type `{ city: string; zipcode: string; } | undefined`
	interface Person {
	name: string
	address?: {
	city: string
	zipcode: string
	}
	}

	const p: Person = { name: "John" }

	p.address
	// `p.address` is of type `{ city: string; zipcode: string; } \| undefined`