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---
id: adf08ec01beb4f99fc7a68f2
title: Falsy Bouncer
isRequired: true
challengeType: 5
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videoUrl: ''
localeTitle: Falsy Bouncer
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---
## Description
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< section id = "description" > Eliminar todos los valores falsos de una matriz. Los valores de < code > false< / code > en JavaScript son < code > false< / code > , < code > null< / code > , < code > 0< / code > , < code > " " < / code > , < code > undefined< / code > y < code > NaN< / code > . Sugerencia: intente convertir cada valor a un booleano. Recuerda usar < a href = "http://forum.freecodecamp.org/t/how-to-get-help-when-you-are-stuck/19514" target = "_blank" > Read-Search-Ask< / a > si te atascas. Escribe tu propio código. < / section >
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## Instructions
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< section id = "instructions" >
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< / section >
## Tests
< section id = 'tests' >
```yml
tests:
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- text: '< code > bouncer([7, " ate" , "" , false, 9])</ code > debe devolver < code > [7, " ate" , 9]</ code > .'
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testString: 'assert.deepEqual(bouncer([7, "ate", "", false, 9]), [7, "ate", 9], "< code > bouncer([7, "ate", "", false, 9])< / code > should return < code > [7, "ate", 9]< / code > .");'
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- text: '< code > bouncer([" a" , " b" , " c" ])</ code > debe devolver < code > [" a" , " b" , " c" ]</ code > .'
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testString: 'assert.deepEqual(bouncer(["a", "b", "c"]), ["a", "b", "c"], "< code > bouncer(["a", "b", "c"])< / code > should return < code > ["a", "b", "c"]< / code > .");'
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- text: '< code > bouncer([false, null, 0, NaN, undefined, "" ])</ code > debe devolver < code > []</ code > .'
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testString: 'assert.deepEqual(bouncer([false, null, 0, NaN, undefined, ""]), [], "< code > bouncer([false, null, 0, NaN, undefined, ""])< / code > should return < code > []< / code > .");'
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- text: '< code > bouncer([1, null, NaN, 2, undefined])</ code > debe devolver < code > [1, 2]</ code > .'
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testString: 'assert.deepEqual(bouncer([1, null, NaN, 2, undefined]), [1, 2], "< code > bouncer([1, null, NaN, 2, undefined])< / code > should return < code > [1, 2]< / code > .");'
```
< / section >
## Challenge Seed
< section id = 'challengeSeed' >
< div id = 'js-seed' >
```js
function bouncer(arr) {
// Don't show a false ID to this bouncer.
return arr;
}
bouncer([7, "ate", "", false, 9]);
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```
< / div >
< / section >
## Solution
< section id = 'solution' >
```js
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// solution required
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```
< / section >