freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/accessing-nested-objects.md

id, title, challengeType, videoUrl, forumTopicId, dashedName

id	title	challengeType	videoUrl	forumTopicId	dashedName
56533eb9ac21ba0edf2244cc	Accessing Nested Objects	1	https://scrimba.com/c/cRnRnfa	16161	accessing-nested-objects

--description--

The sub-properties of objects can be accessed by chaining together the dot or bracket notation.

Here is a nested object:

const ourStorage = {
  "desk": {
    "drawer": "stapler"
  },
  "cabinet": {
    "top drawer": { 
      "folder1": "a file",
      "folder2": "secrets"
    },
    "bottom drawer": "soda"
  }
};

ourStorage.cabinet["top drawer"].folder2;
ourStorage.desk.drawer;

ourStorage.cabinet["top drawer"].folder2 would be the string secrets, and ourStorage.desk.drawer would be the string stapler.

--instructions--

Access the myStorage object and assign the contents of the glove box property to the gloveBoxContents variable. Use dot notation for all properties where possible, otherwise use bracket notation.

--hints--

gloveBoxContents should equal the string maps.

assert(gloveBoxContents === 'maps');

Your code should use dot notation, where possible, to access myStorage.

assert.match(code, /myStorage\.car\.inside/);

gloveBoxContents should still be declared with const.

assert.match(code, /const\s+gloveBoxContents\s*=/);

You should not change the myStorage object.

const expectedMyStorage = {
  "car":{
    "inside":{
      "glove box":"maps",
      "passenger seat":"crumbs"
    },
    "outside":{
      "trunk":"jack"
    }
  }
};
assert.deepStrictEqual(myStorage, expectedMyStorage);

--seed--

--after-user-code--

(function(x) { 
  if(typeof x != 'undefined') { 
    return "gloveBoxContents = " + x;
  }
  return "gloveBoxContents is undefined";
})(gloveBoxContents);

--seed-contents--

const myStorage = {
  "car": {
    "inside": {
      "glove box": "maps",
      "passenger seat": "crumbs"
     },
    "outside": {
      "trunk": "jack"
    }
  }
};

const gloveBoxContents = undefined;

--solutions--

const myStorage = {
  "car":{
    "inside":{
      "glove box":"maps",
      "passenger seat":"crumbs"
    },
    "outside":{
      "trunk":"jack"
    }
  }
};
const gloveBoxContents = myStorage.car.inside["glove box"];