Function merge

src/utils.ts:25–27

(target: T, ...sources: any[])

}

export function merge<T>(target: T, ...sources: any[]): T {
  return mergeWith(target, ...sources, undefined);
}

export function mergeWith<T>(target: T, ...args: any[]): T {
  const customizer: ((a: any, b: any, key: string) => any) | undefined = args.pop();