let testArray = [10, 25, 25, 12, 22, 11, 90];

console.log(sort(testArray));

function sort(array){

  let length = array.length;

  for(let i = 0; i < length; i++ ){

    let j = 0;

    while(j < length - i - 1 ){

      if(array[j] > array[j + 1]){

        let temp = array[j];
        array[j] = array[j + 1];
        array[j + 1] = temp;
      }

      j++;

    }

  }

  return array;

}