问题描述
我正在研究TypeScript中私有成员的实现，我发现它有点令人困惑。 Intellisense不允许访问私有成员，但在纯JavaScript中，它就在那里。这让我觉得TS没有正确实现私有成员。
有什么想法吗？
I'm looking at implementation of private members in TypeScript, and I find it a little confusing. Intellisense doesn't allow to access private member, but in pure JavaScript, it's all there. This makes me think that TS doesn't implement private members correctly.Any thoughts?
class Test{
private member: any = "private member";
}
alert(new Test().member);
推荐答案
就像类型检查一样，会员的隐私仅在编译器中强制执行。
Just as with the type checking, the privacy of members are only enforced within the compiler.
私有属性是作为常规属性实现的，并且不允许类外的代码访问它。
A private property is implemented as a regular property, and code outside the class is not allowed to access it.
要在类中创建真正私有的东西，它不能是类的成员，它将是在创建对象的代码内的函数范围内创建的局部变量。这意味着你不能像类的成员那样访问它，即使用这个关键字。
To make something truly private inside the class, it can't be a member of the class, it would be a local variable created inside a function scope inside the code that creates the object. That would mean that you can't access it like a member of the class, i.e. using the this keyword.
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