64 lines
3.0 KiB
Markdown
64 lines
3.0 KiB
Markdown
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---
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id: 587d7db6367417b2b2512b9a
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title: Match Characters that Occur Zero or More Times
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localeTitle: Caracteres de coincidencia que ocurren cero o más veces
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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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El último desafío usó el signo más <code>+</code> para buscar caracteres que aparecen una o más veces. También hay una opción que coincide con los caracteres que aparecen cero o más veces.
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El personaje para hacer esto es el <code>asterisk</code> o <code>star</code> : <code>*</code> .
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<blockquote>let soccerWord = "gooooooooal!";<br>let gPhrase = "gut feeling";<br>let oPhrase = "over the moon";<br>let goRegex = /go*/;<br>soccerWord.match(goRegex); // Returns ["goooooooo"]<br>gPhrase.match(goRegex); // Returns ["g"]<br>oPhrase.match(goRegex); // Returns null</blockquote>
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</section>
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## Instructions
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<section id='instructions'>
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Cree un regex <code>chewieRegex</code> que use el carácter <code>*</code> para que coincida con todos los caracteres <code>"a"</code> superiores e inferiores en <code>chewieQuote</code> . Su expresión regular no necesita indicadores y no debe coincidir con ninguna de las otras comillas.
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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: Su expresión regular <code>chewieRegex</code> debe utilizar el <code>*</code> carácter a cero o más <code>a</code> personajes.
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testString: 'assert(/\*/.test(chewieRegex.source), "Your regex <code>chewieRegex</code> should use the <code>*</code> character to match zero or more <code>a</code> characters.");'
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- text: Tu regex <code>chewieRegex</code> debe coincidir con 16 caracteres.
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testString: 'assert(result[0].length === 16, "Your regex <code>chewieRegex</code> should match 16 characters.");'
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- text: Tu expresión regular debe coincidir con <code>"Aaaaaaaaaaaaaaaa"</code> .
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testString: 'assert(result[0] === "Aaaaaaaaaaaaaaaa", "Your regex should match <code>"Aaaaaaaaaaaaaaaa"</code>.");'
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- text: 'Tu expresión regular no debe coincidir con ningún carácter en <code>"He made a fair move. Screaming about it can't help you."</code> '
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testString: 'assert(!"He made a fair move. Screaming about it can\"t help you.".match(chewieRegex), "Your regex should not match any characters in <code>"He made a fair move. Screaming about it can't help you."</code>");'
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- text: "Tu expresión regular no debe coincidir con ningún carácter en <code>"Let him have it. It's not wise to upset a Wookiee."</code> '
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testString: 'assert(!"Let him have it. It\"s not wise to upset a Wookiee.".match(chewieRegex), "Your regex should not match any characters in <code>"Let him have it. It's not wise to upset a Wookiee."</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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let chewieQuote = "Aaaaaaaaaaaaaaaarrrgh!";
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let chewieRegex = /change/; // Change this line
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let result = chewieQuote.match(chewieRegex);
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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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// solution required
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```
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</section>
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