Merge pull request #10 from gauravfs-14/main

[added]: Remove Duplicate from array question

Author: gauravfs-14

README.md

@@ -115,6 +115,13 @@ Write a function called `smallestCommonMultiple` that takes two numbers as its p
 
 [Solution Explanation](./solutions/ch_12_Smallest_Common_Multiple/readme.md)
 
+## Challenge 13: Remove Duplicates from an Array
+Write a function that takes an array as input and returns a new array with all duplicate elements removed. For example, if the input array is [1, 2, 2, 3, 4, 4, 5], the function should return [1, 2, 3, 4, 5].
+
+Write a function called `removeDuplicates` that takes an array as its parameter and returns a new array with all duplicate elements removed.
+
+[Solution Explanation](./solutions/ch_13_Remove_Duplicate_From_Array/readme.md)
+
 <!-- Add new challenges before this comment -->
 
 ## License

solutions/ch_13_Remove_Duplicate_From_Array/answer.js

@@ -0,0 +1,16 @@
+
+function removeDuplicates(arr) {
+  // Create a new array to store the unique elements
+  let uniqueArr = [];
+  
+  // Loop through the input array
+  for (let i = 0; i < arr.length; i++) {
+    // If the current element is not in the unique array, add it
+    if (!uniqueArr.includes(arr[i])) {
+      uniqueArr.push(arr[i]);
+    }
+  }
+  
+  // Return the unique array
+  return uniqueArr;
+}

solutions/ch_13_Remove_Duplicate_From_Array/readme.md

@@ -0,0 +1,37 @@
+# Challenge 13: Remove Duplicates from an Array
+Write a function that takes an array as input and returns a new array with all duplicate elements removed. For example, if the input array is [1, 2, 2, 3, 4, 4, 5], the function should return [1, 2, 3, 4, 5].
+
+Write a function called `removeDuplicates` that takes an array as its parameter and returns a new array with all duplicate elements removed.
+
+## Answer
+
+```javascript
+function removeDuplicates(arr) {
+  // Create a new array to store the unique elements
+  let uniqueArr = [];
+  
+  // Loop through the input array
+  for (let i = 0; i < arr.length; i++) {
+    // If the current element is not in the unique array, add it
+    if (!uniqueArr.includes(arr[i])) {
+      uniqueArr.push(arr[i]);
+    }
+  }
+  
+  // Return the unique array
+  return uniqueArr;
+}
+```
+
+## Answer Explanation
+
+The function takes an array `arr` as input and creates a new array `uniqueArr` to store the unique elements. It then loops through the input array and checks if the current element is already in the `uniqueArr`. If it is not, the current element is added to the `uniqueArr`. Finally, the function returns the `uniqueArr`.
+
+Here's an example usage of the function.
+
+```javascript
+const arr = [1, 2, 2, 3, 4, 4, 5];
+const uniqueArr = removeDuplicates(arr);
+console.log(uniqueArr); // Output: [1, 2, 3, 4, 5]
+```
+In this example, the `removeDuplicates` function correctly removes the duplicates from the input array and returns a new array with only the unique elements.