2018-10-10 18:03:03 -04:00 
										
									 
								 
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								id: a6b0bb188d873cb2c8729495
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								title: Convert HTML Entities
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								isRequired: true
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								challengeType: 5
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								videoUrl: ''
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								localeTitle: 转换HTML实体
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								## Description
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
										 
							
							
								< section  id = "description" > 将字符串中的字符< code > & </ code >  , < code > < </ code >  , < code > > </ code >  , < code > " </ code >  (双引号)和< code > & #39 ; </ code >  ( ) , < a  href = "http://forum.freecodecamp.org/t/how-to-get-help-when-you-are-stuck/19514"  target = "_blank" > Read-Search-Ask</ a >  。尝试配对程序。写下你的自己的代码。 </ section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								## Instructions
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< section  id = "instructions" >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< / section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								## Tests
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< section  id = 'tests' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								```yml
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								tests:
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
										 
							
							
								  -  text: < code > convertHTML(" Dolce &  Gabbana" )</ code > 应该返回< code > Dolce &  </ code >  。
							 
						 
					
						
							
								
									
										
										
										
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								    testString: 'assert.match(convertHTML("Dolce &  Gabbana"), /Dolce &  Gabbana/, "< code > convertHTML("Dolce &  Gabbana")< / code >  should return < code > Dolce &  Gabbana< / code > .");'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-10 18:03:03 -04:00 
										
									 
								 
							 
							
								
							 
							
								 
							
								
									
										 
							
							
								  -  text: < code > convertHTML(" Hamburgers <  Pizza <  Tacos" )</ code > 应该返回< code > Hamburgers &  &  </ code >  。
							 
						 
					
						
							
								
									
										
										
										
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								    testString: 'assert.match(convertHTML("Hamburgers <  Pizza  <  Tacos " ) ,  / Hamburgers  & lt ;  Pizza  & lt ;  Tacos / ,  " < code > convertHTML("Hamburgers <  Pizza  <  Tacos " ) < / code >  should return < code > Hamburgers <  Pizza <  Tacos< / code > .");'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-10 18:03:03 -04:00 
										
									 
								 
							 
							
								
							 
							
								 
							
								
									
										 
							
							
								  -  text: < code > convertHTML(" Sixty >  twelve" )</ code > 应返回< code > Sixty &  </ code >  。
							 
						 
					
						
							
								
									
										
										
										
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								    testString: 'assert.match(convertHTML("Sixty > twelve"), /Sixty >  twelve/, "< code > convertHTML("Sixty > twelve")< / code >  should return < code > Sixty >  twelve< / code > .");'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-10 18:03:03 -04:00 
										
									 
								 
							 
							
								
							 
							
								 
							
								
									
										 
							
							
								  -  text: '< code > convertHTML(& #39 ; Stuff in " quotation marks"& #39 ; )</ code > 应该< code > convertHTML(& #39 ; Stuff in " quotation marks"& #39 ; )</ code > 返回< code > Stuff in &  &  </ code >  。'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-20 05:28:26 -07:00 
										
									 
								 
							 
							
								
									
										 
								
							 
							
								 
							
								
									
								 
							
							
								    testString: 'assert.match(convertHTML("Stuff in "quotation marks""), /Stuff in " quotation marks" /, "< code > convertHTML(' Stuff in "quotation marks"' )< / code >  should return < code > Stuff in " quotation marks" < / code > .");'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-10 18:03:03 -04:00 
										
									 
								 
							 
							
								
							 
							
								 
							
								
									
										 
							
							
								  -  text: '< code > convertHTML(" Schindler& #39 ; s List" )</ code > 应该返回< code > Schindler&  </ code >  。'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-20 05:28:26 -07:00 
										
									 
								 
							 
							
								
									
										 
								
							 
							
								 
							
								
									
								 
							
							
								    testString: 'assert.match(convertHTML("Schindler"s List"), /Schindler' s List/, "< code > convertHTML("Schindler' s List")< / code >  should return < code > Schindler' s List< / code > .");'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-10 18:03:03 -04:00 
										
									 
								 
							 
							
								
							 
							
								 
							
								
									
										 
							
							
								  -  text: < code > convertHTML("<>" )</ code > 应返回< code > &  &  </ code >  。
							 
						 
					
						
							
								
									
										
										
										
											2018-10-20 05:28:26 -07:00 
										
									 
								 
							 
							
								
									
										 
								
							 
							
								 
							
								
									
								 
							
							
								    testString: 'assert.match(convertHTML("< >"), /< > /, "< code > convertHTML("< >")< / code >  should return < code > < > < / code > .");'
							 
						 
					
						
							
								
									
										
										
										
											2018-10-10 18:03:03 -04:00 
										
									 
								 
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								  -  text: < code > convertHTML(" abc" )</ code > 应该返回< code > abc</ code >  。
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								    testString: 'assert.strictEqual(convertHTML("abc"), "abc", "< code > convertHTML("abc")< / code >  should return < code > abc< / code > .");'
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< / section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								## Challenge Seed
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< section  id = 'challengeSeed' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< div  id = 'js-seed' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								function convertHTML(str) {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								  // : ) 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								  return str;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								}
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								convertHTML("Dolce &  Gabbana");
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< / div >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< / section >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								## Solution
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< section  id = 'solution' >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								// solution required
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
								
									
								 
							
							
								< / section >