从javascript IE中的字符串创建子数组

create sub array from string in javascript IE

本文关键字：创建 数组 字符串 javascript IE      更新时间：2023-09-26

我有类似的字符串

var sHTMLTable = "> 24 Hrs.,2,19,20,10,27,16,26,64,246,1|> 12 Hrs.,0,0,0,0,0,0,0,0,0,0|> 8 Hrs.,0,0,0,0,0,0,0,0,0,0|> 4 Hrs.,0,0,0,0,0,0,0,0,0,0|Total,2,19,20,10,27,16,26,64,246,1"

我想把它转换成子阵列

var res = sHTMLTable.split("|").map(function (s) {
    var arr = s.split(",");
    return { name: arr.shift(), data: arr.map(Number) };
});
console.log(JSON.stringify(res));

这给了我完美的输出

[{"name":"> 24 Hrs.","data":[2,19,20,10,27,16,26,64,246,1]},{"name":"> 12 Hrs.","data":[0,0,0,0,0,0,0,0,0,0]},{"name":"> 8 Hrs.","data":[0,0,0,0,0,0,0,0,0,0]},{"name":"> 4 Hrs.","data":[0,0,0,0,0,0,0,0,0,0]},{"name":"Total","data":[2,19,20,10,27,16,26,64,246,1]}]

但由于我使用了.map函数，它在IE中引发错误如何在IE中实现同样的结果

在这里查看IE中所有数组函数的解决方案的精彩答案。在上面的代码写

 if (!('map' in Array.prototype)) {
Array.prototype.map= function(mapper, that /*opt*/) {
    var other= new Array(this.length);
    for (var i= 0, n= this.length; i<n; i++)
        if (i in this)
            other[i]= mapper.call(that, this[i], i, this);
    return other;
};
}

或者像这个一样简单地使用jQuery.map

 jQuery.map(a, function( ) { //what ever you want todo .. }

使用$.map（），因为您使用的是jQuery

var sHTMLTable = "> 24 Hrs.,2,19,20,10,27,16,26,64,246,1|> 12 Hrs.,0,0,0,0,0,0,0,0,0,0|> 8 Hrs.,0,0,0,0,0,0,0,0,0,0|> 4 Hrs.,0,0,0,0,0,0,0,0,0,0|Total,2,19,20,10,27,16,26,64,246,1"
var res = $.map(sHTMLTable.split("|"), function (s) {
    var arr = s.split(",");
    return { name: arr.shift(), data: $.map(arr, Number) };
});
console.log(JSON.stringify(res));

只需在两个位置用$.map替换Array.prototype.map：

var sHTMLTable = "> 24 Hrs.,2,19,20,10,27,16,26,64,246,1|> 12 Hrs.,0,0,0,0,0,0,0,0,0,0|> 8 Hrs.,0,0,0,0,0,0,0,0,0,0|> 4 Hrs.,0,0,0,0,0,0,0,0,0,0|Total,2,19,20,10,27,16,26,64,246,1"
var res = $.map(sHTMLTable.split("|"), function (s) {
    var arr = s.split(",");
    return { name: arr.shift(), data: $.map(arr, (Number)) };
});
console.log(JSON.stringify(res));

IE不支持map（）。检查MDN（Mozilla开发者网络）：

地图-MDN

看起来IE在版本9中添加了对map（）的支持。

这是我的版本

 sHTMLTable = sHTMLTable.split('|');
 for(var i = 0, l = sHTMLTable.length; i < l ; i++){
    temp = sHTMLTable[i].replace(',','_').split('_');
    sHTMLTable[i] = {
       name : temp[0],
       data : temp[1]
    }
 }

请在此处查看http://jsfiddle.net/GvyuV/

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