Usage

const a = { A: 1, B: 2, C: 3 };
lowerize(a); // => { a: 1, b: 2, c: 3 }

Installation

CLI

npx atmx add helper lowerize

Manually

Copy and paste the following method into @/utils/helpers/lowerize.ts:

import { mapKeys } from "@/helpers/map-keys.ts";

export type LowercaseKeys<T extends Record<string, any>> = {
[P in keyof T & string as Lowercase<P>]: T[P];
};

/**
* Convert all keys in an object to lower case.
*
* @example
* const a = { A: 1, B: 2, C: 3 }
* lowerize(a) // => { a: 1, b: 2, c: 3 }
*/
export function lowerize<T extends Record<string, any>>(
obj: T,
): LowercaseKeys<T> {
return mapKeys(obj, (k) => k.toLowerCase()) as LowercaseKeys<T>;
}