生成不重复随机数有没有性能更好的方法？

Question

const indRandom = (n, maxValue, minValue = 0) => {  const nNumArray = [...Array(maxValue + 1).keys()];  const resultArray = [];  for (let i = 0; i < n; i++) {    const randomNum = Math.floor((Math.random() * (((maxValue - minValue) + 1) - i)) + minValue);    resultArray.push(nNumArray[randomNum]);    nNumArray.splice(randomNum, 1);  }  console.log(resultArray);  return resultArray;};indRandom(5, 10000);

Answer 1

function indRandom(n, max){

  var arr = [];

  for(var i = 0; i < n; i++){

    var item = Math.floor(Math.random() * max);

    if(arr.indexOf(item) > -1){ i--; continue; }

    else arr.push(item);

  }

  return arr;

}