adambard / adambard/learnxinyminutes-docs

Objective-C: Object declarations

未關閉
#691 5 則留言 0 個 reaction 已指派 0 人 在 GitHub 檢視
enhancement
主要語言
Markdown
星號
12.3k
分支
3.7k
平均合併
13 小時 10 分鐘
30 天內合併 PR
6

描述

[The page](http://learnxinyminutes.com/docs/objective-c/) states the following:

```
// Object declarations
// Put the * in front of the variable names for strongly-typed object declarations
MyClass *myObject1 = nil; // Strong typing
id myObject2 = nil; // Weak typing
```

However, this is misleading if not completely incorrect.
The `*` is the same as it is in C, it means it's the variable is a pointer. It's not clear what is meant by 'strong' or 'weak' typing here, but it's my understanding that, like C, Objective-C is a weakly-typed language (though statically enforced at compile-time).

Rather, I think what is being said here is that `myObject` is referencing an explicit (statically-checked) object of type `MyClass` while `myObject2` is referencing any Objective-C object.

I would fix this myself, but I'm just learning the language and would prefer to defer to someone with more expertise.

貢獻指南

開啟貢獻指南

評估

這個 Issue 還沒有評估資料。

把新 issue 寄到你的電子郵件信箱

精選適合新手參與的 GitHub issue 摘要。