JavaScript Array Sum Problem — HackerRank Solution with Detailed Notes ✅

Publicado el: 12 febrero 2026
en el canal de: code_with_puja

In this video, I solve the HackerRank Sum of Array Elements problem using JavaScript with full detailed notes and step-by-step explanation. This is a very important beginner-level DSA and coding interview question.

Problem Statement:
Given an array of integers, find the total sum of all elements.

Input Format:
• First line → size of array (n)
• Second line → n space-separated integers

Sample Input:
n = 6
Array = [1, 2, 3, 4, 10, 11]

Output:
31

Logic Explained:
• Start a sum variable with 0
• Loop through each array element
• Add each value into sum
• Return final sum

JavaScript Solution:

Example:
console.log(simpleArraySum([1,2,3,4,10,11])); // 31

Alternative Short Method:

This video is helpful for:
JavaScript beginners
DSA preparation
HackerRank practice
Coding interviews
MERN stack learners

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