Question

How to generate N unique random numbers between min and max in Node.js

Answer 1

function generateUniqueRandomNumbers(N, min, max) {
    if (max - min + 1 < N) {
        console.log("Range is too small to generate the required number of unique numbers.");
        return;
    }

    const uniqueNumbers = new Set();

    while (uniqueNumbers.size < N) {
        const randomNum = Math.floor(Math.random() * (max - min + 1)) + min;
        uniqueNumbers.add(randomNum);
    }

    return Array.from(uniqueNumbers);
}

const N = 8;
const uniqueRandomNumbers = generateUniqueRandomNumbers(N, 1, 25);

console.log(uniqueRandomNumbers);



/*
run:

[
  2,  5,  1, 15,
  8, 21, 16, 12
]

*/

 

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