How to perform arithmetic operations in JavaScript?

To perform arithmetic operations in JavaScript, you can use the following operators:

Addition (+): Adds two numbers or concatenates two strings.

let sum = 5 + 3; // 8
let fullName = "John" + " " + "Doe"; // "John Doe"

Subtraction (-): Subtracts one number from another.

let difference = 10 - 5; // 5

Multiplication (*): Multiplies two numbers.

let product = 4 * 6; // 24

Division (/): Divides one number by another.

let quotient = 12 / 3; // 4

Modulo (%): Returns the remainder of the division of one number by another.

let remainder = 10 % 3; // 1

Exponentiation (**): Raises a number to the power of another number.

let power = 2 ** 3; // 8

You can also combine these operators to perform more complex arithmetic operations. Keep in mind the operator precedence and use parentheses to group operations if necessary.