type images?: ImageOption on next.config.js does not allow optional properties.

[catnose99]

What version of Next.js are you using?

v11.1.2

What version of Node.js are you using?

v15.8.0

What browser are you using?

Chrome

What operating system are you using?

macOS

How are you deploying your application?

Vercel

Describe the Bug

On next.config.js, setting single property to images option cause a TypeError.

Type '{ disableStaticImages: true; }' is missing the following properties
from type 'ImageConfig': deviceSizes, imageSizes, loader, path

This happens because deviceSizes, imageSizes, loader and path are required in ImageConfig.

// https://github.com/vercel/next.js/blob/8151a7e0dc9a029a9c4261901d333f67d23f718f/packages/next/server/image-config.ts
type ImageConfig = {
    deviceSizes: number[];
    imageSizes: number[];
    loader: LoaderValue;
    path: string;
    domains?: string[];
    disableStaticImages?: boolean;
    minimumCacheTTL?: number;
};

Expected Behavior

Should allow single property as written in document

module.exports = {
  images: {
    disableStaticImages: true,
  },
}

To Reproduce

Paste below code into your next.config.js

// @ts-check

/**
 * @type {import('next').NextConfig}
 */
const nextConfig = {
  images: {
    disableStaticImages: true,
  },
};

module.exports = nextConfig;

[catnose99]

Created a pull request.

• fix: should allow optional properties for images option #28709

[balazsorban44]

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