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

id, title, challengeType, videoUrl, forumTopicId, dashedName

id	title	challengeType	videoUrl	forumTopicId	dashedName
56533eb9ac21ba0edf2244cd	Accessing Nested Arrays	1	https://scrimba.com/c/cLeGDtZ	16160	accessing-nested-arrays

--description--

As we have seen in earlier examples, objects can contain both nested objects and nested arrays. Similar to accessing nested objects, array bracket notation can be chained to access nested arrays.

Here is an example of how to access a nested array:

const ourPets = [
  {
    animalType: "cat",
    names: [
      "Meowzer",
      "Fluffy",
      "Kit-Cat"
    ]
  },
  {
    animalType: "dog",
    names: [
      "Spot",
      "Bowser",
      "Frankie"
    ]
  }
];

ourPets[0].names[1];
ourPets[1].names[0];

ourPets[0].names[1] would be the string Fluffy, and ourPets[1].names[0] would be the string Spot.

--instructions--

Using dot and bracket notation, set the variable secondTree to the second item in the trees list from the myPlants object.

--hints--

secondTree should equal the string pine.

assert(secondTree === 'pine');

Your code should use dot and bracket notation to access myPlants.

assert(/=\s*myPlants\[1\].list\[1\]/.test(code));

--seed--

--after-user-code--

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

--seed-contents--

const myPlants = [
  {
    type: "flowers",
    list: [
      "rose",
      "tulip",
      "dandelion"
    ]
  },
  {
    type: "trees",
    list: [
      "fir",
      "pine",
      "birch"
    ]
  }
];

const secondTree = "";

--solutions--

const myPlants = [
  {
    type: "flowers",
    list: [
      "rose",
      "tulip",
      "dandelion"
    ]
  },
  {
    type: "trees",
    list: [
      "fir",
      "pine",
      "birch"
    ]
  }
];

const secondTree = myPlants[1].list[1];