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								id: 587d7db3367417b2b2512b8e
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								title: Using the Test Method
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								challengeType: 1
							 
						 
					
						
							
								
									
										
										
										
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								forumTopicId: 301369
							 
						 
					
						
							
								
									
										
										
										
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								dashedName: using-the-test-method
							 
						 
					
						
							
								
									
										
										
										
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								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								# --description--
  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								Regular expressions are used in programming languages to match parts of strings. You create patterns to help you do that matching.
							 
						 
					
						
							
								
									
										
										
										
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								If you want to find the word `the`  in the string `The dog chased the cat` , you could use the following regular expression: `/the/` . Notice that quote marks are not required within the regular expression.
							 
						 
					
						
							
								
									
										
										
										
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								JavaScript has multiple ways to use regexes. One way to test a regex is using the `.test()`  method. The `.test()`  method takes the regex, applies it to a string (which is placed inside the parentheses), and returns `true`  or `false`  if your pattern finds something or not.
							 
						 
					
						
							
								
									
										
										
										
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								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								let testStr = "freeCodeCamp";
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								let testRegex = /Code/;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								testRegex.test(testStr);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								The `test`  method here returns `true` .
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								# --instructions--
  
						 
					
						
							
								
									
										
										
										
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								Apply the regex `myRegex`  on the string `myString`  using the `.test()`  method.
							 
						 
					
						
							
								
									
										
										
										
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								# --hints--
  
						 
					
						
							
								
									
										
										
										
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								You should use `.test()`  to test the regex.
							 
						 
					
						
							
								
									
										
										
										
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								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								assert(code.match(/myRegex.test\(\s*myString\s*\)/));
							 
						 
					
						
							
								
									
										
										
										
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								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								Your result should return `true` .
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								assert(result === true);
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
									
										
										
										
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								# --seed--
  
						 
					
						
							
								
									
										
										
										
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								## --seed-contents--
  
						 
					
						
							
								
									
										
										
										
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								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								let myString = "Hello, World!";
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								let myRegex = /Hello/;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								let result = myRegex; // Change this line
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								# --solutions--
  
						 
					
						
							
								
									
										
										
										
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								```js
							 
						 
					
						
							
								
									
										
										
										
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								let myString = "Hello, World!";
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								let myRegex = /Hello/;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								let result = myRegex.test(myString); // Change this line
							 
						 
					
						
							
								
									
										
										
										
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								```