62 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 587d7db8367417b2b2512ba0
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| title: Match Everything But Letters and Numbers
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| challengeType: 1
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| videoUrl: ''
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| localeTitle: 'Unir todo, excepto letras y números'
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| ---
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| 
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| ## Description
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| <section id="description"> 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. Puedes 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> . <blockquote> deja shortHand = / \ W /; <br> dejar números = "42%"; <br> let sentence = "Coding!"; <br> numbers.match (shortHand); // Devoluciones ["%"] <br> sentence.match (shortHand); // Devoluciones ["!"] <br></blockquote></section>
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| 
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| ## Instructions
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| <section id="instructions"> Use la clase de caracteres abreviados <code>\W</code> para contar el número de caracteres no alfanuméricos en varias comillas y cadenas. </section>
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| 
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| ## Tests
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| <section id='tests'>
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| 
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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>"The five boxing wizards jump quickly."</code> .
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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>"Pack my box with five dozen liquor jugs."</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>"How vexingly quick daft zebras jump!"</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>"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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| ```
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| 
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| </section>
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| 
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| ## Challenge Seed
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| <section id='challengeSeed'>
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| 
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| <div id='js-seed'>
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| 
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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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| ```
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| 
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| </div>
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| 
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| 
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| 
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| </section>
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| 
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| ## Solution
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| <section id='solution'>
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| 
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| ```js
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| // solution required
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| ```
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| </section>
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