从数组中删除项后为什么不重置长度？ [英] Why do not reset length after delete item from array ?

问题描述

我正在研究MVC 5项目。



我尝试了什么：



这里我试图删除json对象。

I am working on MVC 5 project.

What I have tried:

Here I trying to remove json object.

var hidJson = JSON.parse(hidvalue);      
        $.each(hidJson.Form5.Projects, function (i, obj) {
            if (obj != null) {
                if (obj.idPartnerProject == idPartnerProject) {

                    delete hidJson.Form5.Projects[i];              
                }
            }
        });

但是在删除项目后删除了但是数组的长度没有重置。我怎样才能做到这一点 ？这导致'null'关怀数组元素问题。请查看下图。

[ ^ ]



请帮帮我...

But after delete the item deleted but the length of array is not resetting. How can I do this ? This causing 'null' caring array element issue. please look upon below image.
[^]

Please help me...

推荐答案

.each （hidJson.Form5.Projects， function （i，obj）{
if （obj！ = null ）{
if （obj.idPartnerProject == idPartnerProject）{

delete hidJson.Form5.Projects [i];
}
}
}）;

.each(hidJson.Form5.Projects, function (i, obj) { if (obj != null) { if (obj.idPartnerProject == idPartnerProject) { delete hidJson.Form5.Projects[i]; } } });

但是在删除项目后删除但是数组的长度没有重置。我怎样才能做到这一点 ？这导致'null'关怀数组元素问题。请查看下图。

[ ^ ]



请帮帮我...

But after delete the item deleted but the length of array is not resetting. How can I do this ? This causing 'null' caring array element issue. please look upon below image.
[^]

Please help me...

我已经改变了这样的代码，

I have changed the code like this,

hidJson.Form5.Projects.splice(i, 1);

并删除此代码：

and removed this code:

delete hidJson.Form5.Projects[i];  

现在阵列刷新!!!

Now the array refreshed !!!

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