Updated to add solution to "Remove from a Set" (#27500)

* Updated to add solution to "Remove from a Set"

* fix: formatting

* fix: formatting of code block

guide/english/certifications/coding-interview-prep/data-structures/remove-from-a-set/index.md

@@ -2,36 +2,56 @@
 title: Remove from a Set
 ---
 ## Remove from a Set
+![:triangular_flag_on_post:](https://forum.freecodecamp.com/images/emoji/emoji_one/triangular_flag_on_post.png?v=3 ":triangular_flag_on_post:") Remember to use <a>**`Read-Search-Ask`**</a> if you get stuck. Try to pair program ![:busts_in_silhouette:](https://forum.freecodecamp.com/images/emoji/emoji_one/busts_in_silhouette.png?v=3 ":busts_in_silhouette:") and write your own code ![:pencil:](https://forum.freecodecamp.com/images/emoji/emoji_one/pencil.png?v=3 ":pencil:")
+
+### ![:checkered_flag:](https://forum.freecodecamp.com/images/emoji/emoji_one/checkered_flag.png?v=3 ":checkered_flag:") Problem Explanation:
+
+To solve this problem, you have to write a function for the class that removes a given element from the array if the array contains the given element.
+
+
+## ![:speech_balloon:](https://forum.freecodecamp.com/images/emoji/emoji_one/speech_balloon.png?v=3 ":speech_balloon:") Hint: 1
+
+
+Use the built-in "has" function already created to test if the element exists in the Set.
+
+> _try to solve the problem now_
+
+## ![:speech_balloon:](https://forum.freecodecamp.com/images/emoji/emoji_one/speech_balloon.png?v=3 ":speech_balloon:") Hint: 2
+
+Use the splice function to delete an element from an array.
+
+> _try to solve the problem now_
+
+
+
+## Spoiler Alert!
+
+![:warning:](https://forum.freecodecamp.com/images/emoji/emoji_one/warning.png?v=3 ":warning:")
+
+**Solution ahead!**
+
+## ![:beginner:](https://forum.freecodecamp.com/images/emoji/emoji_one/beginner.png?v=3 ":beginner:") Basic Code Solution:
 
-### Method:
-- In this challenge we need to implement a `.remove()` method for the Set class we made in the previous challenge.
-- The method should return `true` if the element was successfully removed and `false` otherwise. 
-### Solution:
-```js
-function Set() {
-    var collection = [];
-    this.has = function(element) {
-        return (collection.indexOf(element) !== -1);
-    };
-    this.values = function() {
-        return collection;
-    };
-    this.add = function(element) {
-        if(!this.has(element)){
-            collection.push(element);
-            return true;
-        }
-        return false;
-    };
      this.remove = function(element){
-        if (this.has(element)){
-            collection.splice(collection.indexOf(element), 1);
-            return true;
+        if(this.has(element)) {
+            this.values().splice( this.values().indexOf(element), 1 );
         }
-        return false;
     }
-}
-```
 
-### Resources:
-- [Wikipedia](https://en.wikipedia.org/wiki/Set_(abstract_data_type))
+![:rocket:](https://forum.freecodecamp.com/images/emoji/emoji_one/rocket.png?v=3 ":rocket:") <a href='https://repl.it/repls/ReflectingUsedTrees' target='_blank' rel='nofollow'>Run Code</a>
+
+### Code Explanation:
+
+*   The if statement checks if the collection contains the element.
+*   If the if statement evaluates to true, then starting from the index at which the element is located, one element is deleted.
+*   If the if statement evaluates to false, then nothing occurs.
+
+## ![:clipboard:](https://forum.freecodecamp.com/images/emoji/emoji_one/clipboard.png?v=3 ":clipboard:") NOTES FOR CONTRIBUTIONS:
+
+![:warning:](https://forum.freecodecamp.com/images/emoji/emoji_one/warning.png?v=3 ":warning:") **DO NOT** add solutions that are similar to any existing solutions. If you think it is **_similar but better_**, then try to merge (or replace) the existing similar solution.
+
+Add an explanation of your solution.
+
+Categorize the solution in one of the following categories — **Basic**, **Intermediate** and **Advanced**. ![:traffic_light:](https://forum.freecodecamp.com/images/emoji/emoji_one/traffic_light.png?v=3 ":traffic_light:")
+
+See ![:point_right:](https://forum.freecodecamp.com/images/emoji/emoji_one/point_right.png?v=3 ":point_right:") <a href='http://forum.freecodecamp.com/t/algorithm-article-template/14272' target='_blank' rel='nofollow'>**`Wiki Challenge Solution Template`**</a> for reference.