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								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								id: bad87fee1348bd9aedf08834
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								title: Create a Set of Radio Buttons
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								challengeType: 0
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								videoUrl: 'https://scrimba.com/p/pVMPUv/cNWKvuR'
							 
						 
					
						
							
								
									
										
										
										
											2019-07-31 11:32:23 -07:00 
										
									 
								 
							 
							
								
									
										 
								
							 
							
								 
							
							
								forumTopicId: 16822
							 
						 
					
						
							
								
									
										
										
										
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								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								## Description
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< section  id = 'description' >  
						 
					
						
							
								
									
										
										
										
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								You can use < dfn > radio buttons< / dfn >  for questions where you want the user to only give you one answer out of multiple options.
							 
						 
					
						
							
								
									
										
										
										
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								Radio buttons are a type of < code > input< / code > .
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								Each of your radio buttons can be nested within its own < code > label< / code >  element. By wrapping an < code > input< / code >  element inside of a < code > label< / code >  element it will automatically associate the radio button input with the label element surrounding it.
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								All related radio buttons should have the same < code > name< / code >  attribute to create a radio button group. By creating a radio group, selecting any single radio button will automatically deselect the other buttons within the same group ensuring only one answer is provided by the user.
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								Here's an example of a radio button:
							 
						 
					
						
							
								
									
										
										
										
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								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< label >   
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < input  type = "radio"  name = "indoor-outdoor" > Indoor 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / label >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								It is considered best practice to set a < code > for< / code >  attribute on the < code > label< / code >  element, with a value that matches the value of the < code > id< / code >  attribute of the < code > input< / code >  element. This allows assistive technologies to create a linked relationship between the label and the child < code > input< / code >  element. For example:
							 
						 
					
						
							
								
									
										
										
										
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								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< label  for = "indoor" >   
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < input  id = "indoor"  type = "radio"  name = "indoor-outdoor" > Indoor 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / label >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								< / section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								## Instructions
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< section  id = 'instructions' >  
						 
					
						
							
								
									
										
										
										
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								Add a pair of radio buttons to your form, each nested in its own < code > label< / code >  element. One should have the option of < code > indoor< / code >  and the other should have the option of < code > outdoor< / code > . Both should share the < code > name< / code >  attribute of < code > indoor-outdoor< / code >  to create a radio group.
							 
						 
					
						
							
								
									
										
										
										
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								< / section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								## Tests
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< section  id = 'tests' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```yml
							 
						 
					
						
							
								
									
										
										
										
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								tests:
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  -  text: Your page should have two radio button elements.
							 
						 
					
						
							
								
									
										
										
										
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								    testString: assert($('input[type="radio"]').length > 1);
							 
						 
					
						
							
								
									
										
										
										
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								  -  text: Your radio buttons should be given the < code > name</ code >  attribute of < code > indoor-outdoor</ code > .
							 
						 
					
						
							
								
									
										
										
										
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								    testString: assert($('input[type="radio"]').filter("[name='indoor-outdoor']").length > 1);
							 
						 
					
						
							
								
									
										
										
										
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								  -  text: Each of your two radio button elements should be nested in its own < code > label</ code >  element.
							 
						 
					
						
							
								
									
										
										
										
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								    testString: assert($('label > input[type="radio"]:only-child').length > 1);
							 
						 
					
						
							
								
									
										
										
										
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								  -  text: Each of your < code > label</ code >  elements should have a closing tag.
							 
						 
					
						
							
								
									
										
										
										
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								    testString: assert((code.match(/< \/label > /g) &&  code.match(/< label / g )  &&  code . match (/< \/label > /g).length === code.match(/< label / g ). length )); 
							 
						 
					
						
							
								
									
										
										
										
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								  -  text: One of your radio buttons should have the label < code > indoor</ code > .
							 
						 
					
						
							
								
									
										
										
										
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								    testString: assert($("label").text().match(/indoor/gi));
							 
						 
					
						
							
								
									
										
										
										
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								  -  text: One of your radio buttons should have the label < code > outdoor</ code > .
							 
						 
					
						
							
								
									
										
										
										
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								    testString: assert($("label").text().match(/outdoor/gi));
							 
						 
					
						
							
								
									
										
										
										
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								  -  text: Each of your radio button elements should be added within the < code > form</ code >  tag.
							 
						 
					
						
							
								
									
										
										
										
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								    testString: assert($("label").parent().get(0).tagName.match('FORM'));
							 
						 
					
						
							
								
									
										
										
										
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								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								## Challenge Seed
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< section  id = 'challengeSeed' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< div  id = 'html-seed' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< h2 > CatPhotoApp< / h2 >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< main >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < p > Click here to view more < a  href = "#" > cat photos< / a > .< / p > 
							 
						 
					
						
							
								
									
										
										
										
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								  < a  href = "#" > < img  src = "https://bit.ly/fcc-relaxing-cat"  alt = "A cute orange cat lying on its back." > < / a > 
							 
						 
					
						
							
								
									
										
										
										
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								  < p > Things cats love:< / p > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < ul > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > cat nip< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > laser pointers< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > lasagna< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / ul > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < p > Top 3 things cats hate:< / p > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < ol > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > flea treatment< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > thunder< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > other cats< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / ol > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < form  action = "/submit-cat-photo" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < input  type = "text"  placeholder = "cat photo URL"  required > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < button  type = "submit" > Submit< / button > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / form > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / main >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / div >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								## Solution
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< section  id = 'solution' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< h2 > CatPhotoApp< / h2 >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< main >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < p > Click here to view more < a  href = "#" > cat photos< / a > .< / p > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < a  href = "#" > < img  src = "https://bit.ly/fcc-relaxing-cat"  alt = "A cute orange cat lying on its back." > < / a > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < p > Things cats love:< / p > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < ul > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > cat nip< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > laser pointers< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > lasagna< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / ul > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < p > Top 3 things cats hate:< / p > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < ol > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > flea treatment< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > thunder< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < li > other cats< / li > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / ol > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < form  action = "/submit-cat-photo" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								   < label  for = "indoor" > < input  id = "indoor"  type = "radio"  name = "indoor-outdoor" >  Indoor< / label > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < label  for = "outdoor" > < input  id = "outdoor"  type = "radio"  name = "indoor-outdoor" >  Outdoor< / label > < br > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < input  type = "text"  placeholder = "cat photo URL"  required > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < button  type = "submit" > Submit< / button > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / form > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / main >  
						 
					
						
							
								
									
										
										
										
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								```
							 
						 
					
						
							
								
									
										
										
										
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								< / section >