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JavaScript

Grzegorz Zielinski
Grzegorz Zielinski
5,838 Points
Posted by Grzegorz Zielinski
Grzegorz Zielinski
5,838 Points

Function problem

Hello,

After I finished one o the videos about functions I tried to write some function by myself to practice my skills a bit - create a function that ask for a low and high number, and then give a random number in range between those two numbers (Match.random).

Here is the code:

const min = prompt('low'); const max = prompt('high');

function getRandomNumber(min, max) { return Math.floor( Math.random() * (max - min) + min); }

console.log(Random number from ${min} to ${max} is ${getRandomNumber(min, max)}.);

As a result I'm getting number which is equal to Math.random() * (max - min) instead od Math.floor( Math.random() * (max - min) + min); and it seems like second "min" at the end of calculation is - for some reason, getting ignored by function.

I got pretty confused with this one, cause even MDN says that it funcion should look like that:

function getRandomArbitrary(min, max) { return Math.random() * (max - min) + min; }

What looks exactly the same as my way of doing it.

Please help me with this one, thanks!

1 Answer

ILYAS KERBAL
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ILYAS KERBAL
Front End Web Development Techdegree Graduate 15,209 Points
ILYAS KERBAL
.a{fill-rule:evenodd;}techdegree seal-36
ILYAS KERBAL
Front End Web Development Techdegree Graduate 15,209 Points

Hello the code to generate a random number is the following

let mini = prompt('Insert min: '); 
let maxi = prompt('Insert max: ');
let randomNumber = Math.floor(Math.random() * ((maxi-mini)+1)) + mini;
console.log(`Random number from ${mini} to ${maxi} is ${randomNumber}.`);
Grzegorz Zielinski
Grzegorz Zielinski
5,838 Points
Grzegorz Zielinski
Grzegorz Zielinski
5,838 Points

Thank you for your answer, but that's not what I asked about.

What I'm looking for is the way of getting a random number from range of certain min and max number, but as a FUNCTION. Following that, I'm also looking for that answer = why is the function ignoring second 'min' in my code.

Thanks