JS 使用xlsx.core.js 数据导出到excel

/* 通用导出数据  需要引入 xlsx.core.js
    * data：数据
    * th：表头
    * filename：导出表格名称
    */
    var data = [];
    var th = [
            ["js导出excel表", "", "", "", "", ""],
            ["标题1", "标题2", "标题3", "标题4", "标题5", "标题6"],
    ];
    var filename = "导出表格名称"；
　　exportData(data, th, filename);
    function exportData(data, th, filename) {
        var deferred = $.Deferred();
        data = data || [];
        th = th || [];
        var merges = [];
        merges.push({
            s: { //s为开始             
                c: 0, //开始列
                r: 0 //开始行
            },
            e: { //e结束
                c: 5, //结束列
                r: 0 //结束行
            }
        });
        if (data.length === 0 || th.length === 0) {
　　　　　　　console.log("缺少数据");
            deferred.reject();
            return;
        }
        filename = filename || '数据导出';
        filename += '_' + moment(new Date()).format('YYYYMMDDHHmmss') + '.xlsx'; // moment 时间插件（如不需要，可以去掉）
        var loadedData = [];
        var i = 0;
        loadedData = loadedData.concat(th);
        for (i = 0; i < data.length; ++i) {
            var item = data[i];
            var obj = [];
            obj.push(item.title1 || "-");
            obj.push(item.title2 || "-");
            obj.push(item.title3 || "-");
            obj.push(item.title4 || "-");
            obj.push(item.title5 || "-");
            obj.push(item.title6 || "-");
            loadedData.push(obj);
        }
        initFile();

        function initFile() {
            var wb = XLSX.utils.book_new(),
                ws = XLSX.utils.aoa_to_sheet(loadedData);
            ws['!merges'] = merges; // 合并单元格
            XLSX.utils.book_append_sheet(wb, ws, "sheet1");
            XLSX.writeFile(wb, filename, {
                compression: true
            });
            deferred.resolve();
        }
        return deferred.promise();
    }