77 lines
1.9 KiB
Markdown
77 lines
1.9 KiB
Markdown
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---
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id: cf1111c1c11feddfaeb8bdef
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title: Modify Array Data With Indexes
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localeTitle: Modificar datos de matriz con índices
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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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A diferencia de las cadenas, las entradas de matrices son <dfn>mutables</dfn> y se pueden cambiar libremente.
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<strong>Ejemplo</strong>
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<blockquote>var ourArray = [50,40,30];<br>ourArray[0] = 15; // equals [15,40,30]</blockquote>
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<strong>Nota</strong> <br> No debe haber espacios entre el nombre de la matriz y los corchetes, como la <code>array [0]</code> . Aunque JavaScript puede procesar esto correctamente, esto puede confundir a otros programadores que leen su código.
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</section>
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## Instructions
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<section id='instructions'>
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Modifique los datos almacenados en el índice <code>0</code> de <code>myArray</code> a un valor de <code>45</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: ' <code>myArray</code> ahora debería ser [45,64,99].'
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testString: 'assert((function(){if(typeof myArray != "undefined" && myArray[0] == 45 && myArray[1] == 64 && myArray[2] == 99){return true;}else{return false;}})(), "<code>myArray</code> should now be [45,64,99].");'
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- text: Debe utilizar el índice correcto para modificar el valor en <code>myArray</code> .
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testString: 'assert((function(){if(code.match(/myArray\[0\]\s*=\s*/g)){return true;}else{return false;}})(), "You should be using correct index to modify the value in <code>myArray</code>.");'
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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 ourArray = [18,64,99];
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ourArray[1] = 45; // ourArray now equals [18,45,99].
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// Setup
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var myArray = [18,64,99];
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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 myArray = [18,64,99];
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myArray[0] = 45;
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```
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</section>
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