SOURCE

function bubbleSort(arr){
  let len = arr.length
  for(let i = len - 1, temp; i > 0; i--){
    for(let j = 0; j < i; j++){
      temp = arr[i]
      if(temp < arr[j]){
        arr[i] = arr[j]
        arr[j] = temp
      }
    }
  }
  return arr
}
bubbleSort([23, 4, -12, 8, 45, 0, -5])


function ArrayList(){
  let arr = []
  
  let swap = function(arr, index1, index2){
    [arr[index1], arr[index2]] = [arr[index2], arr[index1]]
  }
  
  this.insertItem = function(item){
    arr.push(item)
  }
  this.toString = function(){
    return arr.join()
  }
  this.bubbleSort = function(){
    let len = arr.length
    
    for(let i = 0; i < len; i++){
      for(let j = 0; j < len - 1 - i; j++){
        if(arr[j] > arr[j+1]){
          swap(arr, j, j+1)
        }
      }
    }
  }
}

function test(size){
  let arr_list = new ArrayList()
  
  for(let i = size; i > 0; i--){
    arr_list.insertItem(i)
  }
  return arr_list
}

let newTest = test(5)
console.log(newTest.toString())
newTest.bubbleSort()
console.log(newTest.toString())