77 lines
1.9 KiB
Markdown
77 lines
1.9 KiB
Markdown
---
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id: 56533eb9ac21ba0edf2244c0
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title: Global vs. Local Scope in Functions
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localeTitle: Ámbito global vs. local en funciones
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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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Es posible tener variables <dfn>locales</dfn> y <dfn>globales</dfn> con el mismo nombre. Cuando haces esto, la variable <code>local</code> tiene prioridad sobre la variable <code>global</code> .
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En este ejemplo:
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<blockquote>var someVar = "Hat";<br>function myFun() {<br> var someVar = "Head";<br> return someVar;<br>}</blockquote>
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La función <code>myFun</code> devolverá <code>"Head"</code> porque la versión <code>local</code> de la variable está presente.
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</section>
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## Instructions
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<section id='instructions'>
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Agregue una variable local a la función <code>myOutfit</code> para anular el valor de <code>outerWear</code> con <code>"sweater"</code> .
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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: No cambie el valor de la <code>outerWear</code> global
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testString: 'assert(outerWear === "T-Shirt", "Do not change the value of the global <code>outerWear</code>");'
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- text: <code>myOutfit</code> debe devolver <code>"sweater"</code>
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testString: 'assert(myOutfit() === "sweater", "<code>myOutfit</code> should return <code>"sweater"</code>");'
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- text: No cambie la declaración de devolución
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testString: 'assert(/return outerWear/.test(code), "Do not change the return statement");'
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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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// Setup
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var outerWear = "T-Shirt";
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function myOutfit() {
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// Only change code below this line
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// Only change code above this line
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return outerWear;
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}
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myOutfit();
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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 outerWear = "T-Shirt";
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function myOutfit() {
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var outerWear = "sweater";
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return outerWear;
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}
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```
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</section>
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