Object Utils

object.ts

// @note the object equivalent of `array.map()` (uses `FN` util type from `fauxsaurus/FN.ts`)
export const objectMap = <O extends Record<string, unknown>, R>(
	object: O,
	map: FN<[O[keyof O], keyof O, O], R>
): Record<string, R> => {
	const entries = Object.entries(object) as [keyof O, O[keyof O]][]
	const entriesMapped = entries.map<[keyof O, R]>(([key, value]) => [
		key,
		map(value, key, object),
	])

	return Object.fromEntries(entriesMapped)
}

const renameObjectKey = <T extends Record<string, any>>(
	oldKey: string,
	newKey: string,
	{[oldKey]: value, ...obj}: T,
) => Object.assign({[newKey]: value}, obj);