How to Generate Random Numbers in JavaScript - Math.random

In this video I show you a simple example of how to generate a random number and also how to generate a random whole number (or integer) between a range of 1 and X.

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#dcode #javascript #webdev

[quickeasycoding]

use document.write(random); to actually display the number on the screen.

[ChrisTian-oxnr]

//The maximum is inclusive and the minimum is inclusive
function getRandomIntInclusive() {
let min = 0;
let max = 10;
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1) + min);
}

[ogaburan]

For people who want to do random numbers between two numbers that are not 1 to whatever, here is an example:
var minAge = 14 ;
var maxAge = 36-minAge ;
var Age = Math.floor(Math.random() * maxAge ) + minAge +1;

[Carlitos_]

THANK YOU VERY MUCH IF IT WORKED FOR ME thank you very much.

[lucalion]

thanks for this tutorial, easy to understand. Good work!!

[anaisrevellat]

Why have you got some dislikes ! Everything is clear ! so good job :)

[josephcastrigno]

I would have liked a better description on why you add the 1 at the end. I liked that you removed some pieces of code to show what happens when you remove the Math.floor and the +1, but you don't explain why you add 1. Also why did you multiply by 10? For being high on YouTube's result list I'm left with questions still.

[matthewhayes]

Wouldn't this be easier understood for beginners with Math.ceil instead of floor? This way you do not have to add one.

[GingerMinaster]

is their away to make multiple generators without them interfering each other

[FlockofSmeagles]

What I want to know is how to log that. I want to create an RNG that I can log for my group.

[ankurparchani]

But what if you want to print numbers between 71 and 89?

[masterdyl]

Instructions unclear made all my friends broke from this lol

[shwethadevadiga]

Sir i have one doubt how to display graph randomly ????

[pengabdikedamaian]

well, i have a queston about it...

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I just type

var random = Math.floor(Math.random() * 10) +1;

[epi]

Hi its possible that i can get a random number via time base which is every 12am random number will be executed?

[bluffer]

Good explanation but what about if we want a number say between 20 and 30? How do you start it not at 1?

[jacklujimmy]

How can I include a Number in the result?

[tauheedhussain]

He adds 1 so the number can, t be zero if it, s zero there will be 1 added n it so 0+1 = 1 so it will never be zero and the number will be between 1 and 10 not 0 and 10

[riomilano]

1 isn't included just >=0 && <1

[darshanabhuyan]

hello, actually i have generated the random numbers but i have to put the numbers in a table using javascript and after creating the table how am i suppose to insert it .? can u plz help .??