92 lines
2.4 KiB
Markdown
Raw Normal View History

2018-10-08 13:34:43 -04:00
---
id: 56533eb9ac21ba0edf2244cc
title: Accessing Nested Objects
localeTitle: Accediendo a objetos anidados
challengeType: 1
guideUrl: 'https://spanish.freecodecamp.org/guide/certificates/accessing-nested-objects-in-json'
---
## Description
<section id='description'>
Se puede acceder a las sub-propiedades de los objetos encadenando la notación de punto o corchete.
Aquí hay un objeto anidado:
<blockquote>var ourStorage = {<br>&nbsp;&nbsp;"desk": {<br>&nbsp;&nbsp;&nbsp;&nbsp;"drawer": "stapler"<br>&nbsp;&nbsp;},<br>&nbsp;&nbsp;"cabinet": {<br>&nbsp;&nbsp;&nbsp;&nbsp;"top drawer": { <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"folder1": "a file",<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;"folder2": "secrets"<br>&nbsp;&nbsp;&nbsp;&nbsp;},<br>&nbsp;&nbsp;&nbsp;&nbsp;"bottom drawer": "soda"<br>&nbsp;&nbsp;}<br>};<br>ourStorage.cabinet["top drawer"].folder2; // "secrets"<br>ourStorage.desk.drawer; // "stapler"</blockquote>
</section>
## Instructions
<section id='instructions'>
Acceda al objeto <code>myStorage</code> y asigne el contenido de la propiedad de la <code>glove box</code> a la variable <code>gloveBoxContents</code> . Utilice la notación de corchete para las propiedades con un espacio en su nombre.
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: <code>gloveBoxContents</code> debe ser igual a &quot;mapas&quot;
testString: 'assert(gloveBoxContents === "maps", "<code>gloveBoxContents</code> should equal "maps"");'
- text: Usa la notación de puntos y corchetes para acceder a <code>myStorage</code>
testString: 'assert(/=\s*myStorage\.car\.inside\[\s*("|")glove box\1\s*\]/g.test(code), "Use dot and bracket notation to access <code>myStorage</code>");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
// Setup
var myStorage = {
"car": {
"inside": {
"glove box": "maps",
"passenger seat": "crumbs"
},
"outside": {
"trunk": "jack"
}
}
};
var gloveBoxContents = undefined; // Change this line
```
</div>
### After Test
<div id='js-teardown'>
```js
console.info('after the test');
```
</div>
</section>
## Solution
<section id='solution'>
```js
var myStorage = {
"car":{
"inside":{
"glove box":"maps",
"passenger seat":"crumbs"
},
"outside":{
"trunk":"jack"
}
}
};
var gloveBoxContents = myStorage.car.inside["glove box"];
```
</section>