Question

我排成几列。当我刷新页面时，有没有办法随jQuery随机改变它们的顺序？

<div class="container">
    <div class="row">
        <div class="col-xs-6">1</div>
        <div class="col-xs-6">2</div>
        <div class="col-xs-6">3</div>
        <div class="col-xs-6">4</div>
        <div class="col-xs-6">5</div>
        <div class="col-xs-6">6</div>
        <div class="col-xs-6">7</div>
        <div class="col-xs-6">8</div>
        <div class="col-xs-6">9</div>
        <div class="col-xs-6">10</div>
    </div>
</div>

Answer 1

您可以使用jquery。由于您还没有提供示例代码，或向我们展示您的努力，我已经准备好了自己的小提琴。

检查此代码段：

＆＃13;

/**
 * Returns a random integer between min and max values (inclusive)
 */
function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min + 1)) + min;
}

/**
 * Returns a uniquely generated random integer array, so we can use this as our order.
 */
function getRandomSequence(limit) {
  var arr = [];
  while (arr.length < limit) {
    var randomnumber = getRandomInt(0, limit - 1);
    var found = false;
    for (var i = 0; i < arr.length; i++) {
      if (arr[i] == randomnumber) {
        found = true;
        break;
      }
    }
    if (!found) arr[arr.length] = randomnumber;
  }
  return arr;
}

/**
 * Shows randomly ordered columns in a container.
 */
function orderColumnsRandomly() {
  // Get the children of the container
  var columns = $("#xcontainer").children();

  // Empty the container.
  $("#xcontainer").html('');

  // Get a random sequence to show the columns
  var sequence = getRandomSequence(columns.length);

  // Loop through the column array with the given sequence and fill the container.
  for (var i = 0; i < sequence.length; i++) {
    $("#xcontainer").append($(columns[sequence[i]]));
  }
}

// Bind the button's click event.
$("#orderRandomly").click(orderColumnsRandomly);

＆＃13;

.column {
  padding: 15px;
  color: white;
  text-align: center;
}
.a {
  background: #c33
}
.b {
  background: #3c3
}
.c {
  background: #33c
}
.d {
  background: #3cc
}

＆＃13;

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="container">
  <div class="row">
    <div class="col-lg-12">
      <button id="orderRandomly">Order!</button>
    </div>
  </div>
  <br>
  <div class="row" id="xcontainer">
    <div class="column col-xs-3 a">a</div>
    <div class="column col-xs-3 b">b</div>
    <div class="column col-xs-3 c">c</div>
    <div class="column col-xs-3 d">d</div>
  </div>
</div>

＆＃13;

我们只是生成一个随机整数数组，并使用该随机序列，我们用我们的div填充容器。

Answer 2

这个有效：

$.fn.randomize = function(childElem) {
return this.each(function() {
var $this = $(this);
var elems = $this.children(childElem);
elems.sort(function() { return (Math.round(Math.random())-0.5); }); 
$this.remove(childElem);  
for(var i=0; i < elems.length; i++)
$this.append(elems[i]);      
});    
}
$(".xcontainer").randomize(".column");

随机更改bootstrap列顺序？

2 个答案: