如何使用 jQuery/Javascript 从内存中删除对象？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/16643156/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to delete an object from memory using jQuery/Javascript?
提问by Rudresh Bhatt
I am creating an application in which I have a page for creating a customer. for that I have written following code.
我正在创建一个应用程序，其中有一个用于创建客户的页面。为此，我编写了以下代码。
customer=new MobileApp.CustomerViewModel(); //for creating new customer
I want to delete this object. how can I perform this ??
我想删除这个对象。我该如何执行此操作？
回答by taskinoor
Setting customer = nullwill make this enable for garbage collector, given that there is no other valid reference to that object.
customer = null鉴于没有对该对象的其他有效引用，设置将使垃圾收集器启用此功能。
回答by Prasath K
delete customer;
See about delete
查看关于删除
deleteoperator removes a property from an object. As customeris a property of the global object, not a variable, so it can be deleted
delete运算符从对象中删除属性。由于customer是全局对象的属性，而不是变量，所以可以删除
Note : customershould be a global one
注意：customer应该是全局的
customer=new MobileApp.CustomerViewModel();
delete customer; // Valid one
var customer1=new MobileApp.CustomerViewModel();
delete customer1; // Not a valid one
Sample Fiddle
样品小提琴
回答by Nagendra
Recursively destroy the object as shown below. Tested with chrome heap snapshot that the javascript objects are getting cleared in memory
递归销毁对象，如下所示。使用 chrome 堆快照测试，javascript 对象在内存中被清除
function destroy(obj) {
for(var prop in obj){
var property = obj[prop];
if(property != null && typeof(property) == 'object') {
destroy(property);
}
else {
obj[prop] = null;
}
}
}
