consistent-type-imports.md

Enforces consistent usage of type imports (consistent-type-imports)

Rule Details

This rule aims to standardize the use of type imports style across the codebase.

import type { Foo } from './foo';
let foo: Foo;

import { Foo } from './foo';
let foo: Foo;

let foo: import('foo').Foo;

Options

type Options =
  | 'type-imports'
  | 'no-type-imports'
  | {
      prefer: 'type-imports' | 'no-type-imports';
      disallowTypeAnnotations: boolean;
    };

const defaultOptions: Options = {
  prefer: 'type-imports',
  disallowTypeAnnotations: true,
};

prefer

This option defines the expected import kind for type-only imports. Valid values for prefer are:

• type-imports will enforce that you always use import type Foo from '...'. It is default.
• no-type-imports will enforce that you always use import Foo from '...'.

disallowTypeAnnotations

If true, type imports in type annotations (import()) is not allowed. Default is true.

When Not To Use It

If you specifically want to use both import kinds for stylistic reasons, you can disable this rule.