AutoMapper

automapper.ts

// usage: AutoMapper.map<UserProfile>(user, user.profile);

export class AutoMapper {
	static map<TSource>(sourceObj: TSource, ...args: any[]): void {
		const initializers = args.filter(Boolean)
		if (!initializers?.length) {
			return;
		}

		const sourceObjectProps = Object.getOwnPropertyNames(sourceObj);

		const newValues = initializers.reduce((result, arg) => {
			const argKeys = Object.getOwnPropertyNames(arg);
			argKeys.forEach((aKey) => {
				if (sourceObjectProps.includes(aKey)) {
					result[aKey] = arg[aKey];
				}
			});
			return result;
		}, sourceObj);

		Object.assign(sourceObj, newValues);
	}
}