Question

为了在名单上的每一个第三个项目增加一个类别,我正在采取类似行动:

var projectElements = document.getElementById("projectList").children;
var iCount = 0;
for (var i in projectElements) {
    iCount++;
    if (iCount % 3 == 0) {
        if (projectElements[i].className == "") {
            projectElements[i].className += "projectLinkLast";
        }
        else {
            projectElements[i].className += " projectLinkLast";
        }
    }
}

It works fine in Firefox and other browsers except for Internet Explorer 7. Does anybody have a clue why?

Answer 1

问题在于模块操作者。问题可能是你在东道物体上使用for.in(在这种情况下,children of property of an elements),这是一个坏的主意,不能保证按您的期望(或实际上)工作。此外,<儿童编码>。所有浏览器都未获得支持(尽管在7年国际电子计算法中),因此无法解决该浏览器的问题。我建议如下:

var iCount = 0, child = document.getElementById("projectList").firstChild;
while (child) {
    if (child.nodeType == 1) { // Only deal with elements
        iCount++;
        if (iCount % 3 == 0) {
            if (child.className == "") {
                child.className = "projectLinkLast";
            }
            else {
                child.className += " projectLinkLast";
            }
        }
    }
    child = child.nextSibling;
}

Answer 2

Try using the .setAttribute ("}Name”,“blah” und the .className.

Got a demo of your code on JSFiddle and seems to be working: http://jsfiddle.net/LWsTn/6/

如果是gon,则使用 j。使用:

$("#projectList :nth-child(3n").addClass("projectLinkLast");

Documentation: http://api.jquery.com/nth-child-selector/

www.un.org/Depts/DGACM/index_spanish.htm 添加集束器法j Query正在使用,可能有助于。

classNames = value.split(rspace);

for (i = 0, l = this.length; i < l; i++) {
    elem = this[i];

    if (elem.nodeType === 1) {
        if (!elem.className && classNames.length === 1) {
            elem.className = value;

        } else {
            setClass = " " + elem.className + " ";

            for (c = 0, cl = classNames.length; c < cl; c++) {
                if (!~setClass.indexOf(" " + classNames[c] + " ")) {
                    setClass += classNames[c] + " ";
                }
            }
            elem.className = jQuery.trim(setClass);
        }
    }
}

友情链接