Bug Report

🔎 Search Terms

• destructuring
• nested
• literal initializer

🕗 Version & Regression Information

• This is the behavior in every version I tried, and I reviewed the FAQ for entries about https://github.com/microsoft/TypeScript/issues/26235

⏯ Playground Link

Playground link with relevant code

💻 Code

interface Props {
  innerObject?: {
    innerObject2?: {
      name?: string;
      email?: string;
    }
  };
}

// won't let name and email default to undefined
// Initializer provides no value for this binding element and the binding element has no default value. 
export const nestedDestructure1 = (props: Props) => {
  const {
    innerObject: {
       innerObject2: { name, email } = {}
    } = {}
  } = props;
  console.log(name, email);
};

🙁 Actual behavior

Initializer provides no value for this binding element and the binding element has no default value.(2525)

🙂 Expected behavior

name and email default to undefined and has type string | undefined