TypeScript: deep partial?



Is there a way to specify a partial type in TypeScript that also makes all child objects partials as well? For example:

interface Foobar {
  foo: number;
  bar: {
    baz: boolean;
    qux: string;

const foobar: Partial<Foobar> = {
  foo: 1,
  bar: { baz: true }

This throws the following error:

TS2741: Property 'qux' is missing in type '{ baz: true; }' but required in type '{ baz: boolean; qux: string; }'.

Is there any way to make child nodes partials as well?


If you’re looking for a quick and easy solution, check out the type-fest package, which has many useful prebuilt TypeScript types including the PartialDeep type.

For a more technical and customizable solution, see this answer.

Answered By – Ben Botvinick

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0

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