66 lines
3.3 KiB
Markdown
66 lines
3.3 KiB
Markdown
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---
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id: 587d7db8367417b2b2512ba0
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title: Match Everything But Letters and Numbers
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localeTitle: Unir todo, excepto letras y números
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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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Ha aprendido que puede usar un atajo para hacer coincidir los caracteres alfanuméricos <code>[A-Za-z0-9_]</code> usando <code>\w</code> . Un patrón natural que quizás desee buscar es el opuesto a los alfanuméricos.
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Puede buscar lo contrario de <code>\w</code> con <code>\W</code> Tenga en cuenta, el patrón opuesto utiliza una letra mayúscula. Este atajo es el mismo que <code>[^A-Za-z0-9_]</code> .
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<blockquote>let shortHand = /\W/;<br>let numbers = "42%";<br>let sentence = "Coding!";<br>numbers.match(shortHand); // Returns ["%"]<br>sentence.match(shortHand); // Returns ["!"]<br></blockquote>
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</section>
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## Instructions
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<section id='instructions'>
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Use la clase de caracteres abreviados <code>\W</code> para contar el número de caracteres no alfanuméricos en varias comillas y cadenas.
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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 debe utilizar la bandera global.
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testString: 'assert(nonAlphabetRegex.global, "Your regex should use the global flag.");'
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- text: Su expresión regular debe encontrar 6 caracteres no alfanuméricos en <code clase = "notranslate"> "Los cinco asistentes de boxeo saltan rápidamente".
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testString: 'assert("The five boxing wizards jump quickly.".match(nonAlphabetRegex).length == 6, "Your regex should find 6 non-alphanumeric characters in <code>"The five boxing wizards jump quickly."</code>.");'
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- text: Tu expresión regular debe usar el carácter de taquigrafía.
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testString: 'assert(/\\W/.test(nonAlphabetRegex.source), "Your regex should use the shorthand character to match characters which are non-alphanumeric.");'
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- text: Su expresión regular debe encontrar 8 caracteres no alfanuméricos en <code class = "notranslate"> "Empaque mi caja con cinco docenas de jarras de licor". </code>
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testString: 'assert("Pack my box with five dozen liquor jugs.".match(nonAlphabetRegex).length == 8, "Your regex should find 8 non-alphanumeric characters in <code>"Pack my box with five dozen liquor jugs."</code>");'
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- text: Tu expresión regular debe encontrar 6 caracteres no alfanuméricos en <code class = "notranslate"> "¡Qué rápido y zumbido de zebras!" </code>
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testString: 'assert("How vexingly quick daft zebras jump!".match(nonAlphabetRegex).length == 6, "Your regex should find 6 non-alphanumeric characters in <code>"How vexingly quick daft zebras jump!"</code>");'
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- text: Su expresión regular debe encontrar 12 caracteres no alfanuméricos en <code clase = "notranslate"> "123 456 7890 ABC def GHI jkl MNO pqr STU vwx YZ." </code>
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testString: 'assert("123 456 7890 ABC def GHI jkl MNO pqr STU vwx YZ.".match(nonAlphabetRegex).length == 12, "Your regex should find 12 non-alphanumeric characters in <code>"123 456 7890 ABC def GHI jkl MNO pqr STU vwx YZ."</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 quoteSample = "The five boxing wizards jump quickly.";
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let nonAlphabetRegex = /change/; // Change this line
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let result = quoteSample.match(nonAlphabetRegex).length;
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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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