🔎 Search Terms

"readonly", "iife"

🕗 Version & Regression Information

• This is the behavior in every version I tried

⏯ Playground Link

No response

💻 Code

class Foo {
	readonly bar: string = "";
	constructor() {
		(() => { this.bar = "test"; })();
	}
}

🙁 Actual behavior

Fails with Cannot assign to 'bar' because it is a read-only property. error

🙂 Expected behavior

Should work in exactly same way as:

class Foo {
	readonly bar: string = "";
	constructor() {
		this.bar = "test";
	}
}

Additional information about the issue

I assume that's expected for some reason, and I'd love to learn what are the logical grounds for that