Javascript for循环在firefox中无法正常工作

时间:2012-05-22 14:11:04

标签: javascript for-loop

我很可能会遗漏一些东西,或者完全做错了,但是这一点javascript在Chrome和Safari中运行良好,而不是Firefox。 section.id(在if语句中)似乎没有改变,但总是返回section [0] .id,无论它是否符合if语句标准。

var localNavigation = {
    showTab: function (anchortags, anchors) {
        $(window).scroll(function () {
            var scroller, i, section, sectionTop, sectionBottom, sectionColor, sectionTextColor, $section;
            for (i = 0; i < anchors.length; i++) {
                scroller = document.body.scrollTop;
                section = anchors[i];
                $section = $(section);
                sectionColor = $section.css("background-color");
                sectionTextColor = $section.css("color");
                sectionTop = section.offsetTop;
                sectionBottom = section.offsetTop + section.offsetHeight;
                if ((scroller > sectionTop) && (scroller < sectionBottom)) {
                    $(anchortags).removeClass("selected").css({
                        "background-color": "transparent",
                        "color": "#f5eeed"
                    });
                    $("#" + section.id + "_tab").addClass("selected").css({
                        "background-color": "" + sectionColor + "",
                        "color": "" + sectionTextColor + ""
                    });
                    console.log(section.id);
                }
            }
        });
    },
    init: function () {
        var anchortags = $("#local ul li a"),
            anchors = $("section");
        localNavigation.showTab(anchortags, anchors);
    }
};
localNavigation.init();

2 个答案:

答案 0 :(得分:0)

仔细检查您是否正在使用正确的文件。

还尝试使用每个循环。

anchors.each(function( i, section ){
    var $section = $(section);
    scroller = document.body.scrollTop;
    sectionColor = $section.css("background-color");
    sectionTextColor = $section.css("color");
    sectionTop = $section.offsetTop;
    sectionBottom = $section.offsetTop + $section.offsetHeight;
    if ((scroller > sectionTop) && (scroller < sectionBottom)) {
        console.log($section.id);
    }
});

答案 1 :(得分:0)

我发现您使用的是HTML 5 <section>标记。之前在StackOverflow上已经讨论过许多版本的Firefox还不支持这个标签,所以你是否尝试过确保使用最新版本的Firefox?

如果失败了,您可以尝试使用其他标记的代码吗?