Javascript返回[object Object]，需要删除 [英] Javascript returning [object Object], which needs to be removed

问题描述

我需要一些JavaScript的帮助，我试图在JavaScript的帮助下对XML数据进行排序，并且我成功地完成了排序部分，但是输出返回了一些垃圾对象 [object Object ] ，我不希望它打印出来，所以我需要一些帮助来解决这个问题，以便我得到一个合适的输出。我附上一个活泼的小提琴。所有这些都需要用JavaScript而不是JQUERY来完成。

I need some help with my JavaScript, i am trying to sorting XML data with the help of JavaScript, and i am successful doing the sorting part, but the output is returning some garbage object [object Object], which i don't want it to be printed out, so i need some help to get this thing fixed so that i get a proper output. I am attaching a live fiddle. All these needs to be done with JavaScript and not JQUERY.

我不想要 [object Object]，[object Object] 将作为输出打印

I don't want [object Object],[object Object] to be printed as output

Live Fiddle

bookstore 
   |
   |__book 
   |    |_____title
   |    |_____author
   |    |_____year
   |    |_____price
   |
   |__book 
   |
   |__book 
   |
   |__book  

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谢谢

---

Thank You

推荐答案

这是从其中有来

for (var prop in obj){
    li = document.createElement("li");
    li.appendChild(document.createTextNode(obj[prop]));
    // ...
}

你没有考虑到当 typeof obj [prop]; //object直到将它附加到树后， createTextNode 将在其参数上调用 ToString ，给出你[object Object]

You're not taking into account when typeof obj[prop]; // "object" until after appending it to the tree, and createTextNode will invoke ToString on it's parameters, giving you "[object Object]"

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