no-inferrable-type-annotation

Disallow annotations identical to an inferred scalar type

A scalar initializer already determines its ordinary runtime type.
Instead, you SHOULD omit an annotation that repeats that type.

Annotations that preserve a literal type, select another width, or constrain a wider expression remain meaningful.

- Category: style
- Level: warning
- Fix: automatic
- Scope: module

Reported

const enabled: boolean = true;
Accepted

const enabled = true;
Prior art

- typescript-eslint · no-inferrable-types

language/linter/src/rules/style/noinferrabletypeannotation.rs:8