The addition operator (+) adds numbers: The subtraction operator (-) subtracts numbers. The multiplication operator (*) multiplies numbers. The division operator (/) divides numbers. The modulus operator (%) returns the division remainder. In arithmetic, the division of two integers produces a quotient and a remainder.

Jan 24, 2013 · You need to use javaScript's parseInt() method to turn the strings back into numbers. Right now they are strings so adding two strings concatenates them, which is why you're getting "12". I'm not sure parseInt() is the best option here given that the OP's function is adding two user-entered "numbers", not two "integers".

May 8, 2024 · Adding two numbers using an arrow function in JavaScript involves creating a concise function syntax that adds parameters and returns the sum. Syntax: let addition = (a, b) => a + b;

Mar 26, 2025 · Use the steps below to add numbers in JavaScript with the basic addition syntax: Assign variables or constants. Use the syntax var() = (number) for variables and const () = (number) for constants.

Jun 7, 2024 · How to Add the Numbers in a JavaScript Array? Adding the numbers in a JavaScript array is a common operation, particularly in tasks involving data aggregation or mathematical calculations. This process involves iterating through the …

In this post, I will show you three different ways to write a program that adds two numbers in JavaScript. This is the basic way to add numbers in JavaScript. We will define two const values holding two numbers and add them using +. Below is the complete program: If you run it, it will print 3 as output.

Jul 27, 2012 · Javascript is treating your numbers as strings, and concatenating them together instead of adding them like you expect. Use parseInt to convert them into integers before adding: num += parseInt(nums[i], 10); alert(num);

Jul 17, 2012 · Just adding that toFixed () will return a string value, so if you need an integer it will require 1 more filter. You can actually just wrap the return value from nnnnnn's function with Number () to get an integer back: return Number((num / 100).toFixed(2));

Sep 4, 2024 · Welcome to a tutorial on how to add two numbers in Javascript. Adding two numbers together should be a piece of cake now, right? Well, it’s not really straightforward. That covers the basics, but let us walk through a few more examples in this guide. Read on!

Jan 13, 2024 · In this tutorial, we will learn how to add two numbers in JavaScript, along with code examples, output, and simple explanations. How to Add Two Numbers in JavaScript Dynamically? Below is a simple JavaScript program to add two numbers using the + …