freeCodeCamp/curriculum/challenges/english/02-javascript-algorithms-and-data-structures/basic-javascript/updating-object-properties.english.md

id, title, challengeType, videoUrl, forumTopicId

id	title	challengeType	videoUrl	forumTopicId
56bbb991ad1ed5201cd392d1	Updating Object Properties	1	https://scrimba.com/c/c9yEJT4	18336

Description

After you've created a JavaScript object, you can update its properties at any time just like you would update any other variable. You can use either dot or bracket notation to update. For example, let's look at ourDog:

var ourDog = {
  "name": "Camper",
  "legs": 4,
  "tails": 1,
  "friends": ["everything!"]
};

Since he's a particularly happy dog, let's change his name to "Happy Camper". Here's how we update his object's name property: ourDog.name = "Happy Camper"; or ourDog["name"] = "Happy Camper"; Now when we evaluate ourDog.name, instead of getting "Camper", we'll get his new name, "Happy Camper".

Instructions

Update the myDog object's name property. Let's change her name from "Coder" to "Happy Coder". You can use either dot or bracket notation.

Tests

tests:
  - text: You should update <code>myDog</code>&apos;s <code>"name"</code> property to equal "Happy Coder".
    testString: assert(/happy coder/gi.test(myDog.name));
  - text: You should not edit the <code>myDog</code> definition.
    testString: 'assert(/"name": "Coder"/.test(code));'

Challenge Seed

// Setup
var myDog = {
  "name": "Coder",
  "legs": 4,
  "tails": 1,
  "friends": ["freeCodeCamp Campers"]
};

// Only change code below this line

After Test

(function(z){return z;})(myDog);

Solution

var myDog = {
  "name": "Coder",
  "legs": 4,
  "tails": 1,
  "friends": ["freeCodeCamp Campers"]
};
myDog.name = "Happy Coder";