这是闭包内的循环引用吗？

Question

我想知道 self 是否会因被 add 捕获而导致循环引用。这对旧浏览器的垃圾收集器来说会是个问题吗？

var fun = function() {
    var self = this;
    this.value = 0;
    this.add = function(number) {
        self.value += number;
    };
};
fun.prototype.inc = function() {
    this.value++;
};
fun.prototype.dec = function() {
    this.value--;
};

Answer 1

I was wondering if self cause a circular reference by being captured by add.

是的。

And will this be a problem for a garbage collector of an old browser.

没有。甚至不是一个古老的。

这是闭包内的循环引用吗？

Is this a circular reference inside the closure?

javascript

closures

circular-reference