javascript - 在 for 循环的每次迭代中输出一个数组

Question

我有一个脚本，它从用户那里获取数字输入，将它们分配给一个数组，然后使用冒泡排序方法将这些数字按顺序排列。

一切都很好，但我似乎无法弄清楚如何输出数组的内容，因为每次迭代都会改变它。基本上，我想在每个外部 for() 循环循环的新行上观察它的运行情况。

function sortFunction()
{
var totalNums = prompt("How many numbers would you like to enter?","");
var numsArray = [];

  for(i=0; i<totalNums; ++i)
  {

        var nums = prompt("Please enter number " ,"");
        if(nums != 'x')
        {
        numsArray[i] = parseInt(nums);
        document.getElementById("unsorted").innerHTML = "Orignal Numbers: " + numsArray;

      }
  }

var length = numsArray.length;
var swapped;

  do
  {
  swapped = false;
      for (var j=0; j < length-1; j++)
      {
          if (numsArray[j] > numsArray[j+1])
          {
          var temp = numsArray[j];
          numsArray[j] = numsArray[j+1];
          numsArray[j+1] = temp;
          swapped = true;

          }
      }
      document.getElementById("sorted").innerHTML = (numsArray); //This is where I am needing help
  } while (swapped);
}

<p> Click the button to enter and display an array of numbers! </p>
<button onclick="sortFunction()">Click Me</button>

<div id ="unsorted">Unsorted</div>
<div id ="sorted">Sorted</div>

标签： javascript

Answer 1

你非常亲近。我所做的只是将 innerHTML 行上的运算符更改为+=而不是=. 我还添加了一行来每次清除“排序”队列，并对结果进行一些格式化。

function sortFunction() {
  var totalNums = prompt("How many numbers would you like to enter?", "");
  var numsArray = [];
 
  document.getElementById("sorted").innerHTML = "";
  
  for (i = 0; i < totalNums; ++i) {

    var nums = prompt("Please enter number ", "");
    if (nums != 'x') {
      numsArray[i] = parseInt(nums);
      document.getElementById("unsorted").innerHTML = "Orignal Numbers: " + numsArray;

    }
  }

  var length = numsArray.length;
  var swapped;
  let x = 0;

  do {
    x++;
    swapped = false;
    for (var j = 0; j < length - 1; j++) {
      if (numsArray[j] > numsArray[j + 1]) {
        var temp = numsArray[j];
        numsArray[j] = numsArray[j + 1];
        numsArray[j + 1] = temp;
        swapped = true;

      }
    }
    document.getElementById("sorted").innerHTML += "Step " + x + ": " + (numsArray) + "<br>"; //This is where I am needing help
  } while (swapped);
}

<p> Click the button to enter and display an array of numbers! </p>
<button onclick="sortFunction()">Click Me</button>
<div id="unsorted">Unsorted</div>
<div id="sorted">Sorted</div>