It has been 1194 days since the last update, the content of the article may be outdated.
js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
const f = function () {
  let v = "string";

  let c = function () {
    v = document.createElement("div");
  }

  let p = function () {
    console.log(v);
  }

  return { c, p }
}

f().c();

f().p(); // string

在调用f().c()以后，f没有被其他资源，被立即释放，即f().c()以后被GC;

如何才能不被自动GC:

js
1
2
3
4
5
6
7
let o = f();

o.p(); // string

o.c();

o.p(); // <div></div>

如何手动释放:

js
1
2
3
4
5
o = null;

o = f();

o.p(); // string