--- description: 'Disallow member access on a value with type `any`.' --- > 🛑 This file is source code, not the primary documentation location! 🛑 > > See **https://typescript-eslint.io/rules/no-unsafe-member-access** for documentation. The `any` type in TypeScript is a dangerous "escape hatch" from the type system. Using `any` disables many type checking rules and is generally best used only as a last resort or when prototyping code. Despite your best intentions, the `any` type can sometimes leak into your codebase. Accessing a member of an `any`-typed value creates a potential type safety hole and source of bugs in your codebase. This rule disallows member access on any variable that is typed as `any`. ## Examples ### ❌ Incorrect ```ts declare const anyVar: any; declare const nestedAny: { prop: any }; anyVar.a; anyVar.a.b; anyVar['a']; anyVar['a']['b']; nestedAny.prop.a; nestedAny.prop['a']; const key = 'a'; nestedAny.prop[key]; // Using an any to access a member is unsafe const arr = [1, 2, 3]; arr[anyVar]; nestedAny[anyVar]; ``` ### ✅ Correct ```ts declare const properlyTyped: { prop: { a: string } }; properlyTyped.prop.a; properlyTyped.prop['a']; const key = 'a'; properlyTyped.prop[key]; const arr = [1, 2, 3]; arr[1]; const idx = 1; arr[idx]; arr[idx++]; ``` ## Related To - [`no-explicit-any`](./no-explicit-any.md)