How to find the sum of an array of numbers in Javascript ?

Question

How to find the sum of an array of numbers in Javascript ?

Given an array [1, 2, 3, 4], how can I find the sum of its elements? (In this case, the sum would be 10.)

I thought $.each might be useful, but I'm not sure how to implement it.

jquery javascript

3 years ago by akshay1995

2 Answers

Login / Signup to Answer the Question.

Login Signup

**aashaykumar** · Answer 1 · 2021-05-19T11:27:25

aashaykumar



console.log(

  [1, 2, 3, 4].reduce((a, b) => a + b, 0)

)

console.log(

  [].reduce((a, b) => a + b, 0)

)

3 years ago

**kshitijrana14** · Answer 2 · 2021-05-20T13:39:13

Why not reduce? It's usually a bit counter intuitive, but using it to find a sum is pretty straightforward:

var a = [1,2,3];

var sum = a.reduce(function(a, b) { return a + b; }, 0);

C TUTORIAL

C PROGRAMS

INTERVIEW TESTS

EXECUTE CODE

C++ TUTORIAL

C++ PROGRAMS

INTERVIEW TESTS

EXECUTE CODE

PYTHON TUTORIAL

PYTHON HOW TOS

INTERVIEW TESTS

EXECUTE CODE

JAVA TUTORIAL

JAVA CODE EXAMPLES

SPRING TUTORIAL

MORE IN JAVA

COMPUTER ARCHITECTURE

COMPUTER NETWORK

OPERATING SYSTEM

DBMS & SQL

PL/SQL

MongoDB

EXECUTE SQL

ANDROID DEVELOPMENT

GO LANGUAGE

LINUX

DOCKER

HTML TAGS (A to Z)

CSS REFERENCES

SASS/SCSS

KOTLIN

GAME DEVELOPMENT

PHP

GIT GUIDE

JAVASCRIPT

ADVANCED DSA

How to find the sum of an array of numbers in Javascript ?

2 Answers

Login / Signup to Answer the Question.