Dec 13, 2014 · function total(arr) { if(!Array.isArray(arr)) return; let sum=0; arr.forEach(each => { sum+=each; }); return sum; }; and call it like this: total(arr); //return 10

Feb 19, 2023 · This practical, succinct article walks you through three examples that use three different approaches to find the sum of all elements of a given array in Javascript (suppose …

Apr 16, 2025 · The eval Function approach calculates the sum of an array by converting it to a string with elements joined by '+', then using eval to evaluate the string as a JavaScript …

Mar 31, 2023 · In this article, you will learn how to calculate the sum of all the numbers in a given array using a few different approaches. Specifically, I will show you how to find the sum of all …

Aug 3, 2023 · The sum function in Javascript is a tool that calculates the sum of the numbers or elements within an array. Additionally, it makes multiple arguments, adds them together, and …

Mar 1, 2025 · Write a JavaScript function that iterates through an array with a loop to calculate the total sum of its values. Write a JavaScript function that uses the reduce() method to sum array …

Apr 18, 2025 · In JavaScript, we use the sum functions for the calculation of a series of numbers in the code. With the help of the sum function, we can simplify the process of addition and we …

Aug 22, 2024 · In this comprehensive guide, you will learn several methods to calculate the sum of all the numbers in a given array using different approaches in JavaScript. Specifically, I will …

Feb 4, 2023 · One simplest and most elegant way to sum an array is to use the JavaScript array method reduce () method. This method takes a callback function and an initial value as …

Jul 5, 2016 · There is no built-in sum() function in Javascript. You can create one easily with reduce(): return arr.reduce(function (a, b) { return a + b; }, 0); Or use reduce() as a oneliner: …