From 7fbdd383d81d32dca042dfde957da71775d24e31 Mon Sep 17 00:00:00 2001
From: Faizal Imam <88795778+Faizalimam990@users.noreply.github.com>
Date: Mon, 21 Oct 2024 19:28:27 +0530
Subject: [PATCH] Create question6.js

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 .../question6.js                              | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 JavaScript Programs Using Functions/question6.js

diff --git a/JavaScript Programs Using Functions/question6.js b/JavaScript Programs Using Functions/question6.js
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+// Question
+// Write a function uniqueElements(arr) that takes an array of numbers as input and returns a new array containing only the unique elements from the input array. The order of the unique elements in the output array should match their first appearance in the input array.
+// EXAMPLE
+// console.log(uniqueElements([1, 2, 2, 3, 4, 4, 5])); // Output: [1, 2, 3, 4, 5]
+// console.log(uniqueElements([5, 5, 5, 1, 2, 3, 3])); // Output: [5, 1, 2, 3]
+// console.log(uniqueElements([])); // Output: []
+
+
+//ANSWER:-
+function uniqueElements(arr) {
+    const uniqueArray = [];
+    const seen = new Set();
+
+    for (const element of arr) {
+        if (!seen.has(element)) {
+            seen.add(element);
+            uniqueArray.push(element);
+        }
+    }
+
+    return uniqueArray;
+}