66 lines
2.3 KiB
Markdown
66 lines
2.3 KiB
Markdown
---
|
|
id: 587d7dab367417b2b2512b6e
|
|
title: Use the every Method to Check that Every Element in an Array Meets a Criteria
|
|
localeTitle: Use cada método para verificar que cada elemento de una matriz cumple con los criterios
|
|
challengeType: 1
|
|
---
|
|
|
|
## Description
|
|
<section id='description'>
|
|
<code>every</code> métodos funcionan con matrices para verificar si <em>cada</em> elemento pasa una prueba en particular. Devuelve un valor booleano: <code>true</code> si todos los valores cumplen los criterios, <code>false</code> si no.
|
|
Por ejemplo, el siguiente código verificará si cada elemento de la matriz de <code>numbers</code> es menor que 10:
|
|
<blockquote>var numbers = [1, 5, 8, 0, 10, 11];<br>numbers.every(function(currentValue) {<br> return currentValue < 10;<br>});<br>// Returns false</blockquote>
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
Use <code>every</code> método dentro de la función <code>checkPositive</code> para verificar si cada elemento en <code>arr</code> es positivo. La función debe devolver un valor booleano.
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: Su código debe utilizar <code>every</code> métodos.
|
|
testString: 'assert(code.match(/\.every/g), "Your code should use the <code>every</code> method.");'
|
|
- text: ' <code>checkPositive([1, 2, 3, -4, 5])</code> debe devolver <code>false</code> .'
|
|
testString: 'assert(!checkPositive([1, 2, 3, -4, 5]), "<code>checkPositive([1, 2, 3, -4, 5])</code> should return <code>false</code>.");'
|
|
- text: ' <code>checkPositive([1, 2, 3, 4, 5])</code> debe devolver <code>true</code> .'
|
|
testString: 'assert(checkPositive([1, 2, 3, 4, 5]), "<code>checkPositive([1, 2, 3, 4, 5])</code> should return <code>true</code>.");'
|
|
- text: ' <code>checkPositive([1, -2, 3, -4, 5])</code> debe devolver <code>false</code> .'
|
|
testString: 'assert(!checkPositive([1, -2, 3, -4, 5]), "<code>checkPositive([1, -2, 3, -4, 5])</code> should return <code>false</code>.");'
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='js-seed'>
|
|
|
|
```js
|
|
function checkPositive(arr) {
|
|
// Add your code below this line
|
|
|
|
|
|
// Add your code above this line
|
|
}
|
|
checkPositive([1, 2, 3, -4, 5]);
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```js
|
|
// solution required
|
|
```
|
|
</section>
|