javascript - 迭代 DataTables Json 数据时的数组索引

Question

我的 json 数据如下所示:

[
    {"name": "Sitepoint", "url": "http://sitepoint123.com", "editor": {"name": "John Doe", "phone": ["9191919", "1212121"], "email": []}},
    {"name": "Flippa", "url": "http://flippa.com", "editor": {"name": "Adam Smith", "email": ["adam.smith@domain.com"], "phone": []}},
    {"name": "Google", "url": "http://google.com", "editor": {"name": "Google Smith", "email": ["Google.smith@domain.com"], "phone": []}}
]

我正在使用像下面的代码这样的数据表

$("#example").dataTable({
    "bServerSide": true,
    "sAjaxSource": "http://localhost123.com/data_source.json",
    "aoColumns": [{
            "mData": "name",
            "sTitle": "Site name"
        }, {
            "mData": "url",
            "mRender": function(url, type, full) {
                return  '<a href="' + url + '">' + url + '</a>';
            }
        }, {
            "mData": "editor.name"
        }, {
            "mData": "editor.phone"
        }, {
            "mData": "editor",
            "mRender": function(data) {
                return data.email.join("");
            }
        }]
});

我想要的只是它正在填充的 Json 的数组索引 上面的json是“Array with Maps(objects)”， 我想要像 json 的数组索引

站点点为0， 弗利帕是 1， 谷歌是 2

{
    "mData": "url",
    "mRender": function ( url, type, full )  {
    return  '<a href="'+url-ArrayIndex+'?ArrayIndex">' + url + '</a>';
}

Answer 1

如果你不关心 IE8，那么你可以使用 Array.map (你可以使用 IE8 的 polyfill，请参阅链接):

indexpos = myArray.map(function(e) { return e.name; }).indexOf('SitePoint');

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map