#Question

Please update src/move.ts to pass tests. You can find the tests in src/move.spec.ts.

Acceptance criteria

Imagine an array that contains folders. These folders can have files in it. move function moves a file to another folder and returns the new state of given list.

Example list

const list = [
  {
    id: '1',
    name: 'Folder 1',
    files: [
      { id: '2', name: 'File 1' },
      { id: '3', name: 'File 2' },
      { id: '4', name: 'File 3' },
      { id: '5', name: 'File 4' },
    ],
  },
  {
    id: '6',
    name: 'Folder 2',
    files: [{ id: '7', name: 'File 5' }],
  },
]

If I run move(list, '4', '6') then I expect file with id 4 moved to the folder which has id 6. Function should return the new state below;

const result = [
  {
    id: '1',
    name: 'Folder 1',
    files: [
      { id: '2', name: 'File 1' },
      { id: '3', name: 'File 2' },
      { id: '5', name: 'File 4' },
    ],
  },
  {
    id: '6',
    name: 'Folder 2',
    files: [
      { id: '7', name: 'File 5' },
      { id: '4', name: 'File 3' },
    ],
  },
];

Move function signature

Key	Type	Description
list	Folder[]	Given list
source	string	Id of the moved file
destination	string	Id of the folder to be moved

Folder shape

Key	Type	Description
id	string	Unique identifier of folder
name	string	Name of the folder
files	File []	Files in this folder

File shape

Key	Type	Description
id	string	Unique identifier of file
name	string	Name of the file

NOTE: All IDs are unique.

Lint the code

yarn lint

Running tests

yarn test

NOTE: If you believe that some scenarios are missing in the tests, don't hesitate to add them to suite.

Format the code

yarn format