小编Tha*_*nos的帖子

我从第一眼看就知道它听起来像重复的问题,但我认为不是......

我收到一个JSON数组:

var test1 = [] ;

要么

var test2 = [{},{},{}] ;  //This is empty

我没有问题,发现是否test1是空的.

jQuery.isEmptyObject(test1)

我的问题是test2...请注意,在某些情况下,test2可能返回如下内容:

var test2 = [{"a":1},{},{}] ;  //All these are not empty
var test2 = [{},{"a":1},{}] ;  //All these are not empty
var test2 = [{},{},{"a":1}] ;  //All these are not empty

上面的场景不应该被视为空.我试过使用.length但它没有帮助因为长度总是3 ...任何想法？

干杯.

我不确定为什么会这样:

main.cpp中:

int main(int argc, char * argv[]) {
    Pwm_Info tf_info;
    tf_info = get_pwm_info(library_data, motif_name);
}

Gen.cpp

        struct Pwm_Info {
    std::string motif_name;
    int width;
    std::vector < double > pwm;
    Pwm_Info(): motif_name(0),
    width(0),
    pwm(0) {}
}
TF_info;

Pwm_Info get_pwm_info(std::string library_data, std::string motif_name) {
    std::vector < double > double_list;
    strtk::parse(pwm_block, " \n\r", double_list);
    std::cout << double_list.size() << std::endl;

    Pwm_Info TF_info;

    TF_info.motif_name = motif_name;
    TF_info.width = n_width;

    std::vector < double > * pointer;
    std::vector < double > * pointer2;

    pointer = & TF_info.pwm; …