数组对象

• 封装slice()

  function sliceArray(array, size) {
    var result = [];
    for (var x = 0; x < Math.ceil(array.length / size); x++) {
        var start = x * size;
        var end = start + size;
        result.push(array.slice(start, end));
    }
    return result;
  }   
  var array = [1,2,3,4,5,6,7,8,9];
  var array = sliceArray(array, 4);
  console.log(array);
  

用js实现table内容从下到上连续滚动

  //html代码
  <div id="table" style="overflow: hidden; height: 240px;">
      <div id="table1">
          <table width="600" border="0" align="center" cellpadding="0" cellspacing="0" bordercolor="4FBFF9">
              <tr>
                  <td width="120" align="center">201404020001</td>
                  <td width="130">测试业务</td>
                  <td width="150">申请企业名称</td>
                  <td width="100" align="center">2014-03-13</td>
                  <td width="100" align="center">在办</td>
              </tr>
          </table>
      </div>
      <div id="table2"></div>
  </div>
  //js代码
  function tablemove(speed) {
      var table = document.querySelector('#table');
      var table1 = document.querySelector('#table1');
      var table2 = document.querySelector('#table2');
      table2.innerHTML = table1.innerHTML;
      function Marquee() {
          if (table2.offsetTop - table.scrollTop <= 0) {
              table.scrollTop -= table1.offsetHeight;
          } else {
              table.scrollTop++;
          }
      }
      var MyMar = setInterval(Marquee, speed);
      table.onmouseover = function() {
          clearInterval(MyMar);
      };
      table.onmouseout = function() {
          MyMar = setInterval(Marquee, speed);
      }
  }