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# Whats a good condition to stop my numbers from repeating?

How would you right the conditional statement that would prevent the same numbers from being drawn?

a fellow treehouser mentioned something about listing all the items in the array already, and then removing it from the array every time it's drawn. But what if I want to do it in a different way and just use conditionals?

Is this possible and how would it be done?

Thanks!

```/*
let lottoNumbers = [
1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49
];

let html = " ";

for ( let i = 1; i <7; i++) {
var randomDraw = lottoNumbers [Math.floor(Math.random() * lottoNumbers.length)];
html += "<div>";
html += randomDraw ;
html += "</div>";

}
document.write(html);
*/

function Lotto (number) {
this.number = number;
this.drawNumber = Math.floor(Math.random() * number) +1;

}

let html = "";

for (let i = 0 ; i < 6; i+= 1) {
let draw = new Lotto(49);
html += "<div>" + draw.drawNumber + "</div>";
}
document.write (html);
```

Here are two ways of doing it using objects and arrays.

I believe it was me who suggested removing the picked items from the array. And I don't know a way to use a conditional to prevent the random selection from being duplicated — I will be most interested if someone else posts one!

But removing the picked items from the array would only take a small modification to what you have already (in the commented area), and it guarantees each pick will be different:

```for (let i = 1; i < 7; i++) {
var pick = Math.floor(Math.random() * lottoNumbers.length);
html += "<div>" + lottoNumbers[pick] + "</div>";
lottoNumbers.splice(pick, 1);  // remove the picked item from the array
}
```

Yes steven! Thank! You've always been helpful! Im also interested in different ways on how this could be done haha.

Thanksss!