67 lines
1.9 KiB
Markdown
67 lines
1.9 KiB
Markdown
---
|
|
id: 56533eb9ac21ba0edf2244ac
|
|
title: Increment a Number with JavaScript
|
|
challengeType: 1
|
|
videoUrl: ''
|
|
localeTitle: Incrementar un número con JavaScript
|
|
---
|
|
|
|
## Description
|
|
<section id="description"> Puede <dfn>incrementar</dfn> o agregar fácilmente uno a una variable con el operador <code>++</code> . <code>i++;</code> es el equivalente de <code>i = i + 1;</code> <strong>Nota</strong> <br> La línea entera se convierte en <code>i++;</code> , eliminando la necesidad del signo igual. </section>
|
|
|
|
## Instructions
|
|
<section id="instructions"> Cambie el código para usar el operador <code>++</code> en <code>myVar</code> . <strong>Insinuación</strong> <br> Obtenga más información sobre los <a href="https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators#Increment_()" target="_blank">operadores aritméticos - Incremento (++)</a> . </section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: <code>myVar</code> debe ser igual a <code>88</code>
|
|
testString: 'assert(myVar === 88, "<code>myVar</code> should equal <code>88</code>");'
|
|
- text: <code>myVar = myVar + 1;</code> debería ser cambiado
|
|
testString: 'assert(/var\s*myVar\s*=\s*87;\s*\/*.*\s*([+]{2}\s*myVar|myVar\s*[+]{2});/.test(code), "<code>myVar = myVar + 1;</code> should be changed");'
|
|
- text: Usa el operador <code>++</code>
|
|
testString: 'assert(/[+]{2}\s*myVar|myVar\s*[+]{2}/.test(code), "Use the <code>++</code> operator");'
|
|
- text: No cambie el código por encima de la línea
|
|
testString: 'assert(/var myVar = 87;/.test(code), "Do not change code above the line");'
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='js-seed'>
|
|
|
|
```js
|
|
var myVar = 87;
|
|
|
|
// Only change code below this line
|
|
myVar = myVar + 1;
|
|
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
### After Test
|
|
<div id='js-teardown'>
|
|
|
|
```js
|
|
console.info('after the test');
|
|
```
|
|
|
|
</div>
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```js
|
|
// solution required
|
|
```
|
|
</section>
|