Anyone know how I could change my code to ensure that I am able to render different variations of the users input

Question

Here is my code at the moment

solution () {
  let input = document.getElementById("number").value;
  if (input.length > 0) {
    const numbers = /[0-9]/g;
    let newInput = input.match(numbers).join("");
    let shuffled = newInput
    
    console.log(typeof newInput)
    alert(shuffled)  
  } else {
      console.log("Error please try again"); 
  }
}

Currently, as the user enters their input the code returns the numbers within their input.

I did look into permutation but I still new to coding and struggling to fix my code