How to Print Alternate Elements of an Array in JavaScript (DSA)
Published: (March 20, 2026 at 05:11 AM EDT)
1 min read
Source: Dev.to
Source: Dev.to
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🧩 Problem: Alternate Elements of an Array
Given an array arr[], your task is to print every alternate element of the array starting from the first element. In other words, print elements at index 0, 2, 4, … and skip the rest. An array of integers arr[] Print the alternate elements of the array (starting from index 0) Example 1: Input: arr[] = [10, 20, 30, 40, 50] Output: 10 30 50
Explanation: Example 2: Input: arr[] = [-5, 1, 4, 2, 12] Output: -5 4 12
1 ≤ arr.length ≤ 10^5 -10^9 ≤ arr[i] ≤ 10^9