bd68b70f3d
* fix: remove isHidden flag from frontmatter * fix: add isUpcomingChange Co-authored-by: Ahmad Abdolsaheb <ahmad.abdolsaheb@gmail.com> * feat: hide blocks not challenges Co-authored-by: Ahmad Abdolsaheb <ahmad.abdolsaheb@gmail.com> Co-authored-by: Ahmad Abdolsaheb <ahmad.abdolsaheb@gmail.com>
96 lines
1.9 KiB
Markdown
96 lines
1.9 KiB
Markdown
---
|
|
id: 56bbb991ad1ed5201cd392d1
|
|
title: Updating Object Properties
|
|
challengeType: 1
|
|
videoUrl: 'https://scrimba.com/c/c9yEJT4'
|
|
forumTopicId: 18336
|
|
---
|
|
|
|
## Description
|
|
<section id='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 <code>ourDog</code>:
|
|
|
|
```js
|
|
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:
|
|
<code>ourDog.name = "Happy Camper";</code> or
|
|
<code>ourDog["name"] = "Happy Camper";</code>
|
|
Now when we evaluate <code>ourDog.name</code>, instead of getting "Camper", we'll get his new name, "Happy Camper".
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
Update the <code>myDog</code> object's name property. Let's change her name from "Coder" to "Happy Coder". You can use either dot or bracket notation.
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: You should update <code>myDog</code>'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));'
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='js-seed'>
|
|
|
|
```js
|
|
// Setup
|
|
var myDog = {
|
|
"name": "Coder",
|
|
"legs": 4,
|
|
"tails": 1,
|
|
"friends": ["freeCodeCamp Campers"]
|
|
};
|
|
|
|
// Only change code below this line
|
|
|
|
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
### After Test
|
|
<div id='js-teardown'>
|
|
|
|
```js
|
|
(function(z){return z;})(myDog);
|
|
```
|
|
|
|
</div>
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
|
|
```js
|
|
var myDog = {
|
|
"name": "Coder",
|
|
"legs": 4,
|
|
"tails": 1,
|
|
"friends": ["freeCodeCamp Campers"]
|
|
};
|
|
myDog.name = "Happy Coder";
|
|
```
|
|
|
|
</section>
|