问题
Will "form" and "form.errorProcessor" just hold single references to each other and have only 2 objects in memory, or is this a leak / problem situation?
var ErrorProcessor = function(form){
this.form = form; // Problem Line
}
var form = $("form");
form.errorProcessor = new ErrorProcessor(form); // Some element assignment
Post the problem line, I have an object hierarchy as below [checked by console.log(form)]
form: {errorProcessor: {form: {errorProcessor: {form: {errorProcessor: {...}}}}}}
回答1:
No, there is no memory leak caused by circular references, and you are creating only two objects in your code. Any decent garbage collector can handle them.
The only problem is when you recursively inspect your object (like you do with expanding its properties in the console), you go down a bottomless pit - if done programmatically, you'd get an infinite loop or stack overflow from recursion. All these structures you see in your console are representing the same object, though.
来源：https://stackoverflow.com/questions/26161240/object1-as-a-property-of-object2-which-is-in-turn-a-property-of-object1-will-r