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JavaScript

Posted by amit dilawri
amit dilawri
1,244 Points

My solution

var num1 = prompt('Welcome to the random number game....!!! \nEnter a first number greater than zero: '); num1 = Math.round(parseFloat(num1)); var num2 = prompt('Enter a second number greater than first number: '); num2 = Math.round(parseFloat(num2)); var randNum = Math.floor((Math.random() * (num2 - num1)) + 1); randNum = randNum + num1; alert('Resultant random number is ' + randNum + ' which is between the range of ' + num1 + ' and ' + num2 + ' . ');

1 Answer

Özgür Ozan Çakmak
Özgür Ozan Çakmak
11,451 Points

Hello, For starters I'd styled up your code like thus. You should check the Markdown Cheatsheet for sending code by the way.

var num1 = prompt('Welcome to the random number game....!!! \nEnter a first number greater than zero: '); 
num1 = Math.round(parseFloat(num1)); 
var num2 = prompt('Enter a second number greater than first number: '); 
num2 = Math.round(parseFloat(num2)); 
var randNum = Math.floor((Math.random() * (num2 - num1)) + 1); 
randNum = randNum + num1; 
alert('Resultant random number is ' + randNum + ' which is between the range of ' + num1 + ' and ' + num2 + ' . ');

Secondly I don't think this code works correctly. Say, if I entered 20 to the num1 prompt and 25 to the num2. The end result will be a value between 1 and 5. I am not sure but this can be done like this:

var randNum = Math.floor(Math.random() * (num2-num1)+num1);

In this case the inner random function will give me something between 0 and 4 and add it to the 20, therefore I'll have something between 20 and 25.

Happy coding!

amit dilawri
amit dilawri
1,244 Points

Thank you for your help!