[JS]

Add Date to SP List Item Attachments.js

$(document).ready(function () {
    SP.SOD.executeFunc('sp.init.js', 'SP.ScriptHelpers', GetCurrentItemAttachments);
});

function GetCurrentItemAttachments() {
    var url = document.location.href;

    if (url.toLowerCase().indexOf("dispform.aspx") > -1) {
        var attachments = $('#idAttachmentsTable a');

        if (attachments.length > 0) {
            var urlSplited = url.split('/');
            var listIndex = urlSplited.indexOf("Lists");
            var listName = urlSplited[listIndex + 1];

            $.each(attachments, function (i, v) {
                var fileName = $(v).text();
                var attUrl = _spPageContextInfo.webServerRelativeUrl + "/Lists/" + listName + "/Attachments/" + SP.ScriptHelpers.getDocumentQueryPairs()["ID"] + "/" + fileName;

                $.ajax({
                    url: _spPageContextInfo.webAbsoluteUrl + "/_api/Web/getfilebyserverrelativeurl('" + attUrl + "')",
                    type: 'GET',
                    headers: {
                        'Accept': 'application/json;odata=nometadata'
                    },
                    success: function (data) {
                        $(v).text(fileName + " (" + new Date(data.TimeCreated).toLocaleString("tr-TR") + ")");
                    },
                    error: function (jqXHR, textStatus, errorThrown) {
                        console.log('jqXHR: ' + jqXHR);
                        console.log('textStatus: ' + textStatus);
                        console.log('errorThrown: ' + errorThrown);
                    }
                });
            });
        }
    }
}