Trying to add a button to this script so it will generate the numbers on click. Also I dont want the numbers to ever repeat in the same order

Trying to add a button to this script so it will generate the numbers on click. Also I dont want the numbers to ever repeat in the same order. Im doing this inside of sqaurespace as well.

We are trying to come up with a way to give our users a unique ID for raffles from clicking this button.

Any help is really appreciated

HTML:

    <h2 style="text-align: center;">Unique ID</h2>
    
    <p id="array_number" style="font-size: 25px; text-align: center;"></p>
    <input id="Generate" type="button" value="Generate" onclick="();" />

Javascript:

    var min = 1;
    var max = 90;
    //Number of numbers to extract
    var stop = 6;
    
    var numbers = [];
    
    for (let i = 0; i < stop; i++) {
      var n =  Math.floor(Math.random() * max) + min;
      var check = numbers.includes(n);
      
      if(check === false) {
        numbers.push(n);
      } else {
        while(check === true){
          n = Math.floor(Math.random() * max) + min;
          check = numbers.includes(n);
            if(check === false){
              numbers.push(n);
            }
         }
      }
    }
    
    sort();
    
    //Sort the array in ascending order
    function sort() {
      numbers.sort(function(a, b){return a-b});
      document.getElementById("array_number").innerHTML = numbers.join(" - ");
    }

Answer

Modified a bit

// Get DOM
var button = document.querySelector('#Generate');

// I put most of your code into one function
function GenerateRandomNums() {
  var min = 1;
  var max = 90;
  var stop = 6;

  var numbers = [];

  for (let i = 0; i < stop; i++) {
    var n = Math.floor(Math.random() * max) + min;
    var check = numbers.includes(n);

    if (check === false) {
      numbers.push(n);
    } else {
      while (check === true) {
        n = Math.floor(Math.random() * max) + min;
        check = numbers.includes(n);
        if (check === false) {
          numbers.push(n);
        }
      }
    }
  }

  numbers.sort(function(a, b) {
    return a - b
  });
  document.getElementById("array_number").innerHTML = numbers.join(" - ");

  return numbers;
}

// When the button is clicked, the function is executed
button.addEventListener('click', GenerateRandomNums);
<h2 style="text-align: center;">Unique ID</h2>

<p id="array_number" style="font-size: 25px; text-align: center;"></p>

<!-- Removed onClick -->
<input id="Generate" type="button" value="Generate" />

Refactored

// GET THE BUTTON
const button = document.querySelector('#generate-button');

// GENERATE A RANDOM NUMBER FUNCTION
// I made a function for a random number that can be used in other functions
// Defaut min = 1, max = 90
function generateRandomNumber(min = 1, max = 90) {
  return Math.floor(Math.random() * max) + min;
}

// CREATE UNIQUE IDS FUNCTION
function createUniqueIds(e) {
  e.stopPropagation();

  // Get the <p>
  const uniqueIds = document.querySelector('#unique-ids');
  
  // Create an array with 6 empty elements
  let ids = Array(6);
  let n;

  // For loop that iterates up to the length of the array (6 times)
  for (let i = 0; i < ids.length; i++) {
    do {
      n = generateRandomNumber();
    } while (ids.includes(n));

    ids[i] = n;
  }

  // Sort and join the array
  let numString = ids.sort((a, b) => a - b).join(' - ');
  
  // Update the text inside of the <p>
  uniqueIds.textContent = numString;
}

// CLICK EVENT
// When the button is clicked, createUniqueIds() is executed
button.addEventListener('click', createUniqueIds, false);
<h2 style="text-align: center;">Unique ID</h2>

<p id="unique-ids" style="font-size: 25px; text-align: center;">Loading...</p>
<input id="generate-button" type="button" value="Generate" />