js轉換後臺返回date對象

if (value && value.time) {
    var date = new Date(value.time);
    content = '';
    content += date.getFullYear();
    content += '-';
    content += ((date.getMonth() + 1) < 10 ? ("0" + (date.getMonth() + 1)) : (date.getMonth() + 1));
    content += '-';
    content += (date.getDate() < 10 ? ("0" + date.getDate()) : date.getDate());
    content += ' ';
    content += (date.getHours() < 10 ? ("0" + date.getHours()) : date.getHours());
    content += ':';
    content += (date.getMinutes() < 10 ? ("0" + date.getMinutes()) : date.getMinutes());
    content += ':';
    content += (date.getSeconds() < 10 ? ("0" + date.getSeconds()) : date.getSeconds());
    return content;
} else {
    return '---';
}