Performing addition calculations with arrays in JavaScript

Question

Given an array, the task is to find the total sum of all elements in the array.

let numbers = [1, 3, 2, 0];

console.log(numbers.sum());  ==> 6

I need assistance on how to implement the sum function. Can you help me?

Answer 1

Answer №1

There isn't a predefined function called add in the Array prototype. If you want to use it, you'll need to create it yourself.

Important: Remember that altering prototypes is not recommended as it may lead to problems like overwriting existing functions.

const numbers = [1, 3, 2, 0];
Array.prototype.add = function() {
   return this.reduce((a, b) => a + b, 0);
}

console.log(numbers.add())

Answer 2

There isn't a predefined function called add in the Array prototype. If you want to use it, you'll need to create it yourself.

Important: Remember that altering prototypes is not recommended as it may lead to problems like overwriting existing functions.

const numbers = [1, 3, 2, 0];
Array.prototype.add = function() {
   return this.reduce((a, b) => a + b, 0);
}

console.log(numbers.add())

Answer 3

If you're looking for a solution, you could consider utilizing the Array.prototype.reduce() method:

let nums = [2, 5, 9, 3];
var sum = nums.reduce((accumulator, currentValue) => accumulator + currentValue, 0);
console.log(sum);

Answer 4

If you're looking for a solution, you could consider utilizing the Array.prototype.reduce() method:

let nums = [2, 5, 9, 3];
var sum = nums.reduce((accumulator, currentValue) => accumulator + currentValue, 0);
console.log(sum);