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								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								id: 5ddb965c65d27e1512d44da2
							 
						 
					
						
							
								
									
										
										
										
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								title: Step 9
							 
						 
					
						
							
								
									
										
										
										
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								challengeType: 0
							 
						 
					
						
							
								
									
										
										
										
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								dashedName: step-9
							 
						 
					
						
							
								
									
										
										
										
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								---
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								# --description--
  
						 
					
						
							
								
									
										
										
										
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								To make the document objects easier to handle, let's turn them into an array. Wrap the `document.getElementsByClassName('cal-control')`  portion of your code in an `Array.from()`  method.
							 
						 
					
						
							
								
									
										
										
										
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								# --hints--
  
						 
					
						
							
								
									
										
										
										
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								See description above for instructions.
							 
						 
					
						
							
								
									
										
										
										
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								```js
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								assert(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  code
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    .replace(/\s/g, '')
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    .match(
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								      /Array\.from\(document\.getElementsByClassName\([\'\"\`]cal\-control[\'\"\`]\)\)/
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    )
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								);
							 
						 
					
						
							
								
									
										
										
										
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								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								# --seed--
  
						 
					
						
							
								
									
										
										
										
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								## --before-user-code--
  
						 
					
						
							
								
									
										
										
										
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								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								<!DOCTYPE html>  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< html >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < meta  charset = "utf-8"  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < title > < / title > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < meta  name = "description"  content = ""  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < meta  name = "viewport"  content = "width=device-width, initial-scale=1"  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < link  rel = "stylesheet"  href = "styles.css"  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / head > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < div  class = "container" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								      < form  id = "calorie-form" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < h2  class = "center" > Calorie Counter< / h2 > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < div  class = "grid" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          < legend > Sex< / legend > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          < div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            < input  type = "radio"  name = "sex"  id = "female"  value = "F"  checked  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            < label  for = "female" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								              Female (2,000 calories)
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            < / label > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            < div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								              < input  type = "radio"  name = "sex"  id = "male"  value = "M"  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								              < label  for = "male" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								                Male (2,500 calories)
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								              < / label > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < div  class = "grid"  id = "entries" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          Breakfast
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          < input 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            type="number"
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            min="0"
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            class="cal-control"
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								            id="breakfast"
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          />< br  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          Lunch
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          < input  type = "number"  min = "0"  class = "cal-control"  id = "lunch"  / > < br  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          Dinner < input  type = "number"  min = "0"  class = "cal-control"  id = "dinner"  / > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < button  type = "button"  class = "btn-add"  id = "add" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          Add Entry
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < / button > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < button  type = "submit"  class = "btn-solid"  id = "calculate" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          Calculate
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < / button > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < button  type = "button"  class = "btn-outline"  id = "clear" > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								          Clear
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								        < / button > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								      < / form > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								      < div  id = "output" > < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    < / div > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / html >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								## --after-user-code--
  
						 
					
						
							
								
									
										
										
										
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								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  < / body > 
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / html >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
									
										
										
										
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								## --seed-contents--
  
						 
					
						
							
								
									
										
										
										
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								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< script >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  document.getElementById('calorie-form').onsubmit = calculate;
							 
						 
					
						
							
								
									
										
										
										
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								  function calculate(e) {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    e.preventDefault();
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    const total = document.getElementsByClassName('cal-control');
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / script >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```
							 
						 
					
						
							
								
									
										
										
										
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								# --solutions--
  
						 
					
						
							
								
									
										
										
										
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								```html
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< script >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  document.getElementById('calorie-form').onsubmit = calculate;
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  function calculate(e) {
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    e.preventDefault();
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								    const total = Array.from(document.getElementsByClassName('cal-control'));
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								  }
							 
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								< / script >  
						 
					
						
							
								
							 
							
								
							 
							
								 
							
							
								```