60 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			60 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|   | --- | ||
|  | id: 587d8255367417b2b2512c73 | ||
|  | title: Use Spread and Notes for ES5 Set() Integration | ||
|  | challengeType: 1 | ||
|  | forumTopicId: 301720 | ||
|  | dashedName: use-spread-and-notes-for-es5-set-integration | ||
|  | --- | ||
|  | 
 | ||
|  | # --description--
 | ||
|  | 
 | ||
|  | Do you remember the ES6 spread operator `...`? | ||
|  | 
 | ||
|  | `...` can take iterable objects in ES6 and turn them into arrays. | ||
|  | 
 | ||
|  | Let's create a Set, and check out the spread function. | ||
|  | 
 | ||
|  | ```js | ||
|  | var set = new Set([1,2,3]); | ||
|  | var setToArr = [...set] | ||
|  | console.log(setToArr) // returns [ 1, 2, 3 ] | ||
|  | ``` | ||
|  | 
 | ||
|  | # --instructions--
 | ||
|  | 
 | ||
|  | In this exercise we will pass a set object to the `checkSet` function. It should return an array containing the values of the Set. | ||
|  | 
 | ||
|  | Now you've successfully learned how to use the ES6 `Set()` object, good job! | ||
|  | 
 | ||
|  | # --hints--
 | ||
|  | 
 | ||
|  | `checkSet(new Set([1,2,3,4,5,6,7])` should return `[1, 2, 3, 4, 5, 6, 7]`. | ||
|  | 
 | ||
|  | ```js | ||
|  | assert( | ||
|  |   (function () { | ||
|  |     var test = checkSet(new Set([1, 2, 3, 4, 5, 6, 7])); | ||
|  |     return DeepEqual(test, [1, 2, 3, 4, 5, 6, 7]); | ||
|  |   })() | ||
|  | ); | ||
|  | ``` | ||
|  | 
 | ||
|  | # --seed--
 | ||
|  | 
 | ||
|  | ## --seed-contents--
 | ||
|  | 
 | ||
|  | ```js | ||
|  | function checkSet(set){ | ||
|  |    // Only change code below this line | ||
|  | 
 | ||
|  |    // Only change code above this line | ||
|  | } | ||
|  | ``` | ||
|  | 
 | ||
|  | # --solutions--
 | ||
|  | 
 | ||
|  | ```js | ||
|  | function checkSet(set){ | ||
|  | return [...set];} | ||
|  | ``` |