unicorn/no-thenable Correctness

✅ This rule is turned on by default.

What it does

disallow then property

Why is this bad?

If an object is defined as "thenable", once it's accidentally used in an await expression, it may cause problems:

Example

async function example() {
  const foo = {
    unicorn: 1,
    then() {},
  };

  const { unicorn } = await foo;

  console.log("after"); //<- This will never execute
}

References

• Rule Source