10 unique random number between 1 - 10 javascript

Question

How do i generate 1 - 10 unique numbers, I did this

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

but this sometime return duplicate numbers i want all the number to go around once before they apear again

The 10 unique integers between 1 and 10 are 1,2,3,4,5,6,7,8,9,10 — bugs, Jun 02 '18 at 18:12
Then you want to _shuffle_ an array of the numbers from 1 through 10, not generate random numbers from 1 through 10. — Sebastian Simon, Jun 02 '18 at 18:12

score 2 · Accepted Answer · answered Jun 02 '18 at 18:16

Try the following:

function shuffle(arra1) {
    var ctr = arra1.length, temp, index;

    while (ctr > 0) {

        index = Math.floor(Math.random() * ctr);
        ctr--;
        temp = arra1[ctr];
        arra1[ctr] = arra1[index];
        arra1[index] = temp;
    }
    return arra1;
}
var myArray = [1, 2, 3, 4, 5, 6, 7, 8, 9,10];
console.log(shuffle(myArray));

10 unique random number between 1 - 10 javascript

1 Answers1