May 28, 2024 · In this article, we are going to learn about finding the Sum of Digits of a number using JavaScript. The Sum of Digits refers to the result obtained by adding up all the individual numerical digits within a given integer.

Jun 12, 2017 · Convert the number to string, split the string and get an array with all digits and perform a reduce for every part and return the sum. sum = value. .toString() .split('') .map(Number) .reduce(function (a, b) { return a + b; }, 0); For returning the value, you need to addres the value property.

Dec 10, 2015 · On each iteration, convert the number to a string (num.toString()), and then use the .split() method to generate an array of numbers. In other words, 333 would return [3, 3, 3]. Then use the .reduce() method to add the current/previous numbers in …

Sep 17, 2023 · In this post, I will show you how to write a JavaScript program to add the digits of a given number or it will find the sum of the digits of a number. For example, if the number is 234, it will print 9. With this approach, we will use one while loop …

Feb 4, 2012 · function sumDigits(number) { var str = number.toString(); var sum = 0; for (var i = 0; i < str.length; i++) { sum += parseInt(str.charAt(i), 10); } return sum; } It does literally what you are trying to do, which is iterate over the digits of the number (by converting it to a string).

Mar 1, 2025 · Write a JavaScript program to calculate the sum of a given number's digits. In mathematics, the digit sum of a natural number in a given number base is the sum of all its digits. For example, the digit sum of the decimal number 6098 would be 6+0+9+8=23.

Sep 23, 2022 · To find the sum of digits in JavaScript, there are two approaches, the first is to divide the number and add the remainder to obtain the sum, and the other is by using split and reduce methods in JavaScript.

Nov 22, 2024 · The program defines a function sumOfDigits that takes a number as input and returns the sum of its digits. Inside the function, it uses a while loop to iterate through each digit of the number. It extracts the last digit, adds it to the sum, …

In this program, You will learn how to find the sum of digits of a number in JavaScript. Statement. Increment/Decrement. r = num % 10; . sum = sum + r; . num = parseInt(num / 10); } .

Mar 3, 2024 · To sum all the digits in a number: Convert the number to a string. Use the split() method to split the string into an array of digits. Use the reduce() method to sum up all the digits in the array. The function takes a number as a parameter and …