什么是垃圾收集的正确方法?

发布于 2025-01-29 00:02:19 字数 508 浏览 3 评论 0原文

我有一些打字稿代码,其中一个变量为某种类型,无法分配null nor undefined。如果我想重置其值,以便可以收集上一个的垃圾,将其强加于未定义的而不是一个空对象是有意义的吗?

type SomeType = { someProp?: number };

type MyType = { myProp: SomeType };

let variable: MyType = { myProp: { someProp: 5 } };

// What's the proper way to garbage collect?

// This
variable = { myProp: {} };

// Or this?
variable = {} as MyType;

// Or this?
variable = undefined as unknown as MyType;

I have some TypeScript code where a variable is of a certain type and can't be assigned null nor undefined. If I want to reset its value, so that the previous one can be garbage collected, would it make sense to force it to undefined rather than an empty object, which is memory allocated for nothing?

type SomeType = { someProp?: number };

type MyType = { myProp: SomeType };

let variable: MyType = { myProp: { someProp: 5 } };

// What's the proper way to garbage collect?

// This
variable = { myProp: {} };

// Or this?
variable = {} as MyType;

// Or this?
variable = undefined as unknown as MyType;

如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。

扫码二维码加入Web技术交流群

发布评论

需要 登录 才能够评论, 你可以免费 注册 一个本站的账号。
列表为空,暂无数据
我们使用 Cookies 和其他技术来定制您的体验包括您的登录状态等。通过阅读我们的 隐私政策 了解更多相关信息。 单击 接受 或继续使用网站,即表示您同意使用 Cookies 和您的相关数据。
原文