不支持 IE 8 中的 indexOf? [英] No support for indexOf in IE 8?

问题描述

我需要根据 JSON 响应动态创建单选按钮.到目前为止，我在 Chrome 和 firefox 中所做的工作，但在 if(subItem[1].indexOf(",") >= 0 上给出了 Object 不支持此属性或方法) 行

I have a requirement where I create radio buttons dynamically based upon JSON response. So far what I did works in Chrome and firefox, but gives Object doesn't support this property or method on if(subItem[1].indexOf(",") >= 0) line

我的代码

$("#sList").live("change", function(){
    var currentService=this.value;
    var c1Svc=[];
    var c2Svc=[];

    if(absP.length==2)
    {
        $.each(compareServiceData,function(i,item){

            if(currentService==item[0])
            {
                var configCount=0;
                $.each(item[1],function(j,subItem){

                    var temp=subItem[1];

                    /*The JSON response contains List of Lists, so here if it contains a list it will be separated by "," so split it and store in a array, else directly store in a array*/
                    if(subItem[1].indexOf(",") >= 0)
                    {
                        var tList=temp.split(",");
                        $.each(tList,function(k,val){
                            if(configCount==0)
                            {
                                c1Svc.push(val);                                
                            }
                            else
                            {
                                c2Svc.push(val);                                
                            }
                        });
                    }
                    else
                    {
                        if(configCount==0)
                        {
                            c1Svc.push(subItem[1]);                             
                        }
                        else
                        {
                            c2Svc.push(subItem[1]);                             
                        }
                    }
                    configCount++;

                });
            }

        });

        if ($("#customServiceListing").length == 0)
        {               
            $("#compareContent").append('<table id="customServiceListing" align="center" width="90%" class="csm-table" border="1"><tbody><tr><td><form id="c1Service"></form></td><td><form id="c2Service"></form></td></tr></tbody></table>');
        }
        else
        {
            $('#c1Service').empty();
            $('#c2Service').empty();
        }

    }
    else
    {
        $("#compareContent").append('<table align="center" width="90%" class="csm-table" border="1"><tbody><tr><td><form><select id="c1Service"></select></form></td><td><select id="c2Service"></select></td><td><select id="c3Service"></select></td></tr></tbody></table>');
    }


    /*adding service radios to config1*/
    $.each(c1Svc,function(i,item){
        $("#c1Service").append('<input type="radio" name="customConfig1ServiceNames" id="'+item+'" value="'+i+1+'"/>'+item);
    });
    if(c1Svc.length>1)
        $("#c1Service").append('<br/>');

    /*adding service radios to config2*/
    $.each(c2Svc,function(i,item){
        $("#c2Service").append('<input type="radio" name="customConfig2ServiceNames" id="'+item+'" value="'+i+1+'"/>'+item);
    });
    if(c2Svc.length>1)
        $("#c2Service").append('<br/>');
});

更新

这里是一个列表IE8不支持的各种功能代码

Here is a List of various function code not supported by IE8

更新这里有什么问题，对于它给我的每个值 -1 我正在使用 Sudhir 给出的代码

Update What is the problem here, for every value it gives me -1 I am using code given by Sudhir

alert(subItem[1].indexOf(",")+", "+subItem[1]);

截图

更新

明白了，var temp=subItem[1].toString(); 是问题所在，将其转换为 String 有效.

Got it here, var temp=subItem[1].toString(); was the problem, converting it to String worked.

推荐答案

IE 版本

9 没有indexOf，所以你可以自己添加:

IE versions < 9 don't have indexOf, so you can add your own:

if (!Array.prototype.indexOf) {
    Array.prototype.indexOf = function (elt /*, from*/) {
        var len = this.length >>> 0;
        var from = Number(arguments[1]) || 0;
        from = (from < 0) ? Math.ceil(from) : Math.floor(from);
        if (from < 0) from += len;

        for (; from < len; from++) {
            if (from in this && this[from] === elt) return from;
        }
        return -1;
    };
}

<小时>

var subItem = [];
subItem[1]="CSMTestPWXListinerService,CSMTestPWXListinerService_ManualyAdded";
console.log(subItem[1].indexOf(","));
//returns 25 

这篇关于不支持 IE 8 中的 indexOf?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！