Unique Random Number Generation JSX

Question

    const maxNumber = 10;
    const arrayNumber = [];

    for (let i=0; i<10;i++){
      const randomNumber = Math.floor((Math.random() * maxNumber) + 1);
      arrayNumber.push ( randomNumber )
    }

    console.log(arrayNumber)

When I console log arrayNumber it shows some repeated numbers as shown in below screenshot

Number Repeats

How can I generate unique random numbers, please advise.

Does this answer your question? [Generate unique random numbers between 1 and 100](https://stackoverflow.com/questions/2380019/generate-unique-random-numbers-between-1-and-100) — Agney, Feb 12 '20 at 09:15

score 0 · Answer 1 · answered Feb 12 '20 at 09:45

0

You could try with this one:

const maxNumber = 100;
const arrayNumber = ;
for (let i=1; i<=10;i++){
  const randomNumber = Math.floor((Math.random() * maxNumber) * i);
  arrayNumber.push ( randomNumber )
}
console.log(arrayNumber)

answered Feb 12 '20 at 09:45

DiTaBa

44
2

score 0 · Accepted Answer · answered Feb 12 '20 at 09:58

0

Below code solved my problem:

if(arrayNumber.indexOf(randomNumber)==-1){
    arrayNumber.push ( randomNumber )
}

answered Feb 12 '20 at 09:58

Emma Expat

87
7

Unique Random Number Generation JSX

2 Answers2