How to use Functions In Javascript

Q: How to use Functions In Javascript

In this approach we multiply two numbers in JavaScript involves using the * operator to perform arithmetic multiplication on numeric variables, resulting in their result.

Using “*” Operator

Using Arrow function

Functions are the building blocks of some specific code that carry out specific tasks. Using the function, we can multiply two numbers by passing parameters, and the function will then return the result of the multiplication.

Syntax:

function fun_name (param1 , param2) {
   return param1 * param2 ;
}
OR 
function fun_name (param1 , param2){
    return param2 * param1 ;
}
~ Although params are optional, they are necessary if you need to perform an operation.

Example: This example describes the multiplication of 2 numbers using Function.

Javascript

// First variable 
let a = 10; 
  
// Second variable 
let b = 20; 
  
// Funciton for multiplication of two numbers 
function multiply(a, b) { 
    return a * b; 
} 
  
// For printing the result 
console.log("After multiplication : " + multiply(a, b));

Output

After multiplication : 200

JavaScript Program for Multiplication of Two Numbers

In this article, we are going to learn how we can multiply two numbers using JavaScript. Multiplying the two numbers in JavaScript involves performing arithmetic addition on numeric values, resulting in their sum.

JavaScript supports numeric data types. In JavaScript, both floating-point and integer numbers fall under the same “Number” type. Because JavaScript takes care of it for you, you don’t need to explicitly declare whether a number is an integer or a floating-point number. In order to avoid having to declare them separately, we can use a variable and assign it to any value.

Examples:

Let's take two numbers 
a = 4 , b = 10
 
Here a is multiplicand and  b is multiplier 
a * b = 4 * 10 = 40

These are the following ways by which we can multiply two numbers:

Table of Content

Using “*” Operator
Using Functions
Using Arrow function
Using Multiplication assignment operator
Using for loop

Tags:

#javascript-math #JavaScript-Program #JavaScript #Web Technologies