ToPascalCaseKeys

Converts all keys of an object type to PascalCase recursively. This is the return type of toPascalCaseKeys.

type Converted = ToPascalCaseKeys<T>;

Usage

ToPascalCaseKeys<T>

Use ToPascalCaseKeys when you need to name the type of data whose keys have been converted to PascalCase — for example, the type of a payload after passing it through toPascalCaseKeys. Keys of nested objects and objects inside arrays are converted recursively. Built-in objects like Date or Map and primitive values pass through unchanged.

import type { ToPascalCaseKeys } from 'es-toolkit/types';

type User = {
  userId: number;
  firstName: string;
  userAddress: { zipCode: string };
};

type PascalUser = ToPascalCaseKeys<User>;
// => { UserId: number; FirstName: string; UserAddress: { ZipCode: string } }

Type Parameters

• T: The type whose keys are converted.