题解 | #无重复数组#
无重复数组
https://www.nowcoder.com/practice/d2fa3632268b41df9bc417b74802ad8c
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
</head>
<body>
<script>
const _getUniqueNums = (start,end,n) => {
// 补全代码
let arr = [];
let res = [];
for(let i = start; i<=end; i++){
arr.push(i);
}
while(res.length!=n){
let randomindex = Math.round(Math.random()*arr.length);
res.push(arr[randomindex]);
arr.splice(randomindex,1);
}
return res;
}
</script>
</body>
</html>
