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Learn Math.random( ) & Math.floor( ) and build your own love calculator❤

Hello everyone hope everyone is doing well. My name is Surya L, The purpose of this blog is to teach you all about Math.random() & Math.floor() and build your own love calculator❤.

What is Math.random( )?

The Math.random() function in JavaScript generates a random number between 0 (inclusive) and 1 (exclusive). As a result, Math.random() can return 0 but not 1.

For example

function randomFraction() {
  return Math.random();
}
randomFraction();

The output of above Code 👇 0.56

In the Above code Math.random( ) generates random value from 0 to 0.9999 but it never returns 1.

What is Math.floor( )?

Math.floor( ) is a JavaScript function used to round the number down to its nearest whole number.

For Example:

console.log(Math.floor(56.9));
//The math.floor rounds the value 56.9 to 57

Generate Random Whole Numbers with JavaScript

It's great that we can generate random decimal numbers, but it's even more useful if we use it to generate random whole numbers.

Steps

  1. Use Math.random() to generate a random decimal.
  2. Multiply that random decimal by 100.
  3. Use another function, Math.floor() to round the number down to its nearest whole number.

Program to generate a random no. from 0 to 99

console.log(Math.floor(Math.random() * 100));

The output of above Code 👇

6

To generate a random number from 0 to 100

console.log(Math.floor(Math.random() * 100)+1);

The output of above Code 👇

100

Love Calculator with custom input

Steps

Create a Function called as loveCalculator which takes input lover1 and lover2 Use Math.random() to generate a random decimal. Multiply that random decimal by 100. Use Math.floor() to round the number down to its nearest whole number. Add 1 to Math.floor(Math.random() * 100); to get 100% Console (Math.floor(Math.random() * 100)+1); Call the function loveCalculator by giving values for lover1 and lover2

You Can find the code here for love Calculator

function loveCalculator(lover1,lover2)
{
console.log("The lovers "+lover1+" and "+lover2+" has "+(Math.floor(Math.random() * 100)+1)+" % ❤love");
}
loveCalculator("Ram","Sam");

The output of above Code 👇

**The lovers Ram and Sam has 24 % love **

To Summarize:

  1. The Math.random() function in JavaScript generates a random number between 0 (inclusive) and 1 (exclusive). As a result, Math.random() can return 0 but not 1.
  2. Math.floor( ) is a JavaScript function used to round the number down to its nearest whole number.

**Credits: I learned this topics in FreeCodeCamp which I explained in minified version

Thanks for reading the blog. Do let me know what you think about it.**

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