javascript - 停止脚本调试错误对话框出现在 ie8 中？

Question

我明白了，

点击“否”表示页面显示完美。

它指的是jquery1.4.2.js的这一部分:

// Get the Nth element in the matched element set OR
// Get the whole matched element set as a clean array
get: function( num ) {
    return num == null ?

        // Return a 'clean' array
        this.toArray() :

        // Return just the object
        ( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );
},

我假设我在我的一个 js 文件中某处调用了错误的上下文(这将是一个真正的查找任务)。

标准 IE8 用户会遇到此错误吗？

(我想 ms 很难重新安装 ie!)

我的javascript:

var IE = /*@cc_on!@*/false; 

//DOCUMENT.READY EVENTS
//---------------------------------------------------------------------------
$(window).ready(function(){         
    // mark events as not loaded
    $('.event').data({
        t1_loaded: false,
        t2_loaded: false,
        t3_loaded: false,
        art_req: false
    }); 

    //mark no events have been clicked
    $('#wrap_right').data('first_click_made', false);

    //TAB CLICK -> AJAX LOAD TAB
    $('#wrap_right .rs_tabs li').live('click', function(){
        var id = $('#wrap_right').data('curr_event');
        var tab = parseInt($(this).attr('rel'));
        do_tab(id, tab);        
    })

    // cal-block event click
    $('#cal_blocks div.event, #main_search div.event').live('click', function(){
        var id = $(this).attr('id').split('e')[1];
        window.location.hash = id;
    });

    // jq history
    $.historyInit(function(hash){
        if(hash){event_load(hash);}
    });

    // search
    $('#search_input').typeWatch
        ({
            callback: function(){
                var q = $('#search_input').attr('value');
                search(q);
            },
            wait : 350,
            highlight : false,
            captureLength : 2
        });     

    $('#search_input, #main_search div.close').live('click',function(){
        $(this).attr("value","");
        reset_srch_res();   
    });

    $('#main_search').easydrag();       
    $('a.dialog').colorbox();

    //artist names in event desc -> scroll
    $('#wrap_right .art_link').live('click', function(){                    
        var art_id = $(this).attr('rel');   
        var id = $('#wrap_right').data('curr_event');
        $('#e'+id).data('art_req', art_id);
        $('#rs_'+id+' .t2').click();        
    });


});


// FUNCTIONS
//---------------------------------------------------------------------------

    function event_load(id){
        console.log('function called: event_load');
        //mark current event    
        $('#wrap_right').data('curr_event', id);

        //hide any other events
        if($('#wrap_right').data('first_click_made') === true)
            {
                $('#wrap_right .event_rs').hide();
            }


        //frame loaded before?
        var loaded = $('#e'+id).data('t1_loaded');
        if(loaded === true) {
            $('#rs_'+id).show();        
        }
        else {
            create_frame(id);
        }

        //open/load the first tab
        $('#rs_'+id+' .t1').click();
        $('#cal_blocks').scrollTo('#e'+id, 1000, {offset: {top:-220, left:0}});
    }

    function create_frame(id){
        console.log('function called: create_frame');
        var art = ents[id].art;
        var ven = ents[id].ven;
        var type = ents[id].gig_club;
        var nn = ents[id].nn;   
        var ven_add = ents[id].venue;

        //select colours for tabs
        if(type  == 1){ var label = 'gig';}
        else if(type  == 2){ var label = 'club';}
        else if(type  == 0){ var label = 'other';}

        //create rs container for this event
        var frame =             '<div id="rs_'+id+'" class="event_rs">';
        frame +=                '<div class="title_strip">';
        frame +=                '<p class="rs_nn hf_font">'+nn+'</p><p class="rs_ven">'+ven_add+'</p>';
        frame +=                '</div>';
        frame +=                '<div class="rs_tabs"><ul class="'+label+'"><li class="t1 nav_tab1 curr_tab hand" rel="1"></li>';
        if(art == 1){frame +=   '<li class="t2 nav_tab2 hand" rel="2"></li>';}
        if(ven == 1){frame +=   '<li class="t3 nav_tab2 hand" rel="3"></li>';}
        frame +=                '</ul></div>';
        frame +=                '<div id="rs_content"><div class="tab_body tab1" ></div>';
        if(art == 1){frame +=   '<div class="tab_body tab2"></div>';}
        if(ven == 1){frame +=   '<div class="tab_body tab3"></div>';}
        frame +=                '</div>';
        frame +=                '</div>';
        $('#wrap_right').append(frame); 
    };


    //load or show required tab
    function do_tab(id, tab){
        console.log('function called: do_tab');
        //hide other tabs
        $('#rs_'+id+' .tab_body').hide();   
        //mark current(clicked) tab
        $('#rs_'+id+' .rs_tabs li').removeClass('curr_tab');
        $('#rs_'+id+' .rs_tabs .t'+tab).addClass('curr_tab');

        //is the tab already loaded and hidden?
        var loaded = $('#e'+id).data('t'+tab+'_loaded');
        if(loaded === true)
            {
                $('#rs_'+id+' .tab'+tab).show();
                if (tab == 2) { art_requested(id); }
            }
        else
            {
                //ajax load in the tab
                $('#rs_'+id+' .tab'+tab).load('index_files/tab'+tab+'.php?id='+id, function(){                  
                    //after load callback
                    if (tab == 1)
                        { setup_tab_1(id); }
                    if (tab == 2) { setup_tab_2(id); }                                  
                });
                //mark tab as loaded
                $('#e'+id).data('t'+tab+'_loaded', true);
                //fade in current tab
                $('#rs_'+id+' .tab'+tab).fadeIn(600);           
            }   
    }


    //mark current event in cal-blocks  
    function mark_current(id){
        console.log('function called: mark_current');
        $('#cal_blocks .event_sel').removeClass('event_sel');
        $('#e'+id).addClass('event_sel');
    }


    //setup tab 1   
    function setup_tab_1(id){
        console.log('function called: setup_tab_1');    
        $('#rs_' + id + ' .frame').fadeIn(600);

        var $img = $('#rs_'+id+' .event_img');
        var rel = $img.attr('rel');
        if (rel !== '')
            {
                $img.live('click', function(){
                    $.fn.colorbox({href: rel, overlayClose: true});
                });
            }

        if($('#wrap_right').data('first_click_made') === false)
            {
                //$('#wrap_right').delay(500).slideDown();
                //$('#rs_'+id+' .rs_tabs').delay(800).fadeIn(600);
                load_fb_js();
                $('#wrap_right').data('first_click_made', true);
            }
        mark_current(id);
    }

    //setup tab 2
    function setup_tab_2(id) {
        console.log('function called: setup_tab_2');
        art_requested(id);
        $('#rs_'+id+' #art_scrollable').scrollable({
            size: 1,
            easing: 'swing',
            clickable: false,
            onBeforeSeek: function(){before();},
            onSeek: function(){after();}
        }).navigator("#art_scroll_nav");
        prep_media_carousel();  
    }



    //check to see if an artist has been requested
    function art_requested(id){
        console.log('function called: art_requested');
        var art_req = $('#e'+id).data('art_req');   
        if(art_req !== false)
            {
                $('#art_'+art_req).click();
            }
    }


    //scroll artist panes smoothly (scroll bars cause glitches otherwise)

    function before (){ 
        if(!IE){$('#art_scrollable .bio_etc').css('overflow','-moz-scrollbars-none');}
    }

    function after (){          
        if(!IE){$('#art_scrollable .bio_etc').css('overflow','auto');}
    }


    // MEDIA CAROUSEL 
    //--------------------------

    function prep_media_carousel(){
        console.log('function called: prep_media_carousel');
        //youtube and soundcloud player
        $("#rs_content .yt_scrollable a.yt, #rs_content .yt_scrollable a.sc").colorbox({                
            overlayClose : false,
            opacity : 0
        });     

        $("#colorbox").easydrag(true);
        $('#cboxOverlay').remove();
    }


    function make_carousel_scrollable(unique_id){
        console.log('function called: make_carousel_scrollable');   
        $('#scroll_'+unique_id).scrollable({
            size:1,
            clickable:false,
            nextPage:'#r_'+unique_id,
            prevPage:'#l_'+unique_id
        });
    }


    function check_l_r_arrows(total, counter, art_id){
        console.log('function called: check_l_r_arrows');
        //left arrow
        if(counter > 0)
            {
                $('#l_'+art_id).show();
                $('#l_'+art_id+'_inactive').hide();
            }
        else
            {
                $('#l_'+art_id).hide();
                $('#l_'+art_id+'_inactive').show();
            }

        //right arrow   
        if(counter < total-3)
            {
                $('#r_'+art_id).show();
                $('#r_'+art_id+'_inactive').hide();
            }
        else
            {
                $('#r_'+art_id).hide();
                $('#r_'+art_id+'_inactive').show();
            }
    }



    //load facebook scripts
    function load_fb_js(){
        console.log('function called: load_fb_js');
        $.getScript('http://static.ak.connect.facebook.com/connect.php/en_GB', function(){
            //callback
            FB.init("89bb37189bede9e30eb07a66b9a1c52a");
        });
    }


    // SEARCH
    //---------------------------------------------------------------------------
    function reset_srch_res(){
        $('#main_search').fadeOut(400).children().remove();
    }

    function search(q){
            console.log('function called: search');
            $.ajax({  
                type: 'GET',
                url: 'index_files/srch/search.php?q='+q,
                success: function(e)
                    {
                        $('#main_search').html(e).show();           
                    }  
            }); 
    }

Answer 1

他们会在底部看到一个黄色的小图标，否则他们会看到你所看到的，这取决于浏览器的设置方式。我怀疑，在某种程度上，您的页面并非没有缺陷。您应该能够使用开发人员工具来检查堆栈跟踪并找出代码中发生错误的位置。或者，您可以用 try/catch block 将代码括起来，并以这种方式找出错误。

[edit] 这是浏览器在左下角显示的内容:
_{(来源:gutfullofbeer.net)}

双击它会弹出与您看到的相同的错误对话框。