94 lines
2.0 KiB
Markdown
94 lines
2.0 KiB
Markdown
---
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id: 56bbb991ad1ed5201cd392d2
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title: Add New Properties to a JavaScript Object
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localeTitle: Agregar nuevas propiedades a un objeto de JavaScript
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challengeType: 1
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---
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## Description
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<section id='description'>
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Puede agregar nuevas propiedades a los objetos JavaScript existentes de la misma manera que los modificaría.
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Así es como agregaríamos una propiedad de <code>"bark"</code> a <code>ourDog</code> :
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<code>ourDog.bark = "bow-wow";</code>
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o
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<code>ourDog["bark"] = "bow-wow";</code>
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Ahora, cuando evaluamos <code>ourDog.bark</code> , obtendremos su ladrido, "bow-wow".
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</section>
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## Instructions
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<section id='instructions'>
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Agrega una propiedad de <code>"bark"</code> a <code>myDog</code> y <code>myDog</code> con un sonido de perro, como "woof". Puede usar la notación de punto o corchete.
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: Agregue la propiedad <code>"bark"</code> a <code>myDog</code> .
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testString: 'assert(myDog.bark !== undefined, "Add the property <code>"bark"</code> to <code>myDog</code>.");'
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- text: No agregue <code>"bark"</code> a la sección de configuración
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testString: 'assert(!/bark[^\n]:/.test(code), "Do not add <code>"bark"</code> to the setup section");'
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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// Example
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var ourDog = {
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"name": "Camper",
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"legs": 4,
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"tails": 1,
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"friends": ["everything!"]
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};
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ourDog.bark = "bow-wow";
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// Setup
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var myDog = {
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"name": "Happy Coder",
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"legs": 4,
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"tails": 1,
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"friends": ["freeCodeCamp Campers"]
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};
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// Only change code below this line.
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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console.info('after the test');
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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var myDog = {
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"name": "Happy Coder",
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"legs": 4,
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"tails": 1,
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"friends": ["freeCodeCamp Campers"]
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};
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myDog.bark = "Woof Woof";
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```
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</section>
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