How to disallow implicit any?

Question

I am using TSLint with "no-any": true, "no-unsafe-any": true. It disallow:

let foo: any;

However it still allows:

let foo;

How to turn on the rule for implicit any?

Answer 1

As of now there is no option in tslint to achieve that. You could use the typescript compiler option "noImplicitAny": true, which can be configured using tsconfig.json.

Reference : https://www.typescriptlang.org/docs/handbook/compiler-options.html