javascript - 根据内容设置表格样式

Question

我有下表:http://jsfiddle.net/UfhVc/1/

我正在尝试:

1. 在具有相同 ID 的所有行上获取相同的样式
2. 突出显示具有相同 ID 的各行中的差异。

但现在我似乎无法弄清楚步骤 1) 所需的逻辑。使用 jQuery 没问题，我只是发现使用纯 js 更容易。

此外，我在这部分代码中收到警告:

table.rows[i+1].cells[0].innerHTML

Answer 1

像这样吗？

var newColor = "#F1D0F2";
var diffColor = "#CECECE";

$('#tbl tr:gt(0)').each(function () { //Loop through the trs leaving out the header

    var txt = $(this).find('td:eq(0)').text(); //get the text of the id column
    var $this = $(this);

    var matchingRows = $('#tbl tr').not(this).filter(function () { //get the matching rows whose id colum value is same
        return $(this).find('td:eq(0)').text() == txt; 
    }).css('background-color', newColor); //apply css for match

    matchingRows.find('td').css('background-color', function (i) { //apply background color
        if ($this.find('td:eq(' + i + ')').text() != this.innerHTML) return diffColor; // to the tds of matching rows but column valud differ.
    });
});

<强> Fiddle

引用文献:

• :gt()
• filter()
• css()
• :eq()

编辑

根据您的评论，更新如下:

var allColors = ["#333333","#990099", "#1295A6", "#FFFF99"]; //Set up the colors in to an array
var diffColor = "#CECECE";

$('#tbl tr:gt(0)').each(function () {

    var txt = $(this).find('td:eq(0)').text();
    var $this = $(this);

     if($this.is('.transformed')) //check for class transformed is present if so this has already been processed skip it.
        return;

    //Get the matching rows whose id column value is same     
    var matchingRows = $('#tbl tr').filter(function () {
        return $(this).find('td:eq(0)').text() == txt;
    }).css('background-color', allColors.shift()).addClass('transformed'); //Set the color and add a class to avoid latter processing

    matchingRows.find('td').css('background-color', function (i) { //apply background color
        var $parTd = $this.find('td:eq(' +  $(this).index() + ')');
        if ($.trim($parTd.text()) != $.trim(this.innerHTML)) // to the tds of matching rows but column value differ.
        {
            $parTd.css('background-color', diffColor);
            return diffColor;
        }
    });

});

<强> Fiddle