Type Alias PascalCasedPropertiesDeep<Value>

PascalCasedPropertiesDeep: Value extends Function
| Date
| RegExp
    ? Value
    : Value extends (infer U)[]
        ? PascalCasedPropertiesDeep<U>[]
        : Value extends Set<infer U>
            ? Set<PascalCasedPropertiesDeep<U>>
            : {
                [K in keyof Value as PascalCase<K>]: PascalCasedPropertiesDeep<
                    Value[K],
                >
            }

Convert object properties to pascal case recursively.

This can be useful when, for example, converting some API types from a different style.

Type Parameters

  • Value

See

  • PascalCase
  • PascalCasedProperties

Example

import type {PascalCasedPropertiesDeep} from 'type-fest';

interface User {
	userId: number;
	userName: string;
}

interface UserWithFriends {
	userInfo: User;
	userFriends: User[];
}

const result: PascalCasedPropertiesDeep<UserWithFriends> = {
	UserInfo: {
		UserId: 1,
		UserName: 'Tom',
	},
	UserFriends: [
		{
			UserId: 2,
			UserName: 'Jerry',
		},
		{
			UserId: 3,
			UserName: 'Spike',
		},
	],
};

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