typescript 打字稿：成员的下划线约定
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Typescript : underscore convention for members
提问by Jeson Dias
I have a class Email
我有一个班级电子邮件
class Email {
private _from: string;
private _to: Array<string>;
private _subject: string;
}
It'll create an email object something like:
它将创建一个电子邮件对象，例如：
{
_from:'',
_to:'',
_subject:''
}
This seems a little weird to me since I cannot directly use this object to send to a function . Instead I'll have to transform the object so that it doesn't have underscores . So how do I use the underscore convention or do I have to transform the object .
这对我来说似乎有点奇怪，因为我不能直接使用这个对象发送到一个函数。相反，我必须转换对象，使其没有下划线。那么我如何使用下划线约定或者我是否必须转换对象。
EDIT : If I do drop the '_'
编辑：如果我确实删除了“_”
How do I name the getters and setters if we name the private variables without underscore? A VSCode plugin called Typescript toolbox creates them something like this
如果我们命名不带下划线的私有变量，我该如何命名 getter 和 setter？一个名为 Typescript 工具箱的 VSCode 插件创建它们是这样的
public get $subject(): string {
return this.subject;
}
Is $ a good convention ?
$ 是一个很好的约定吗？
采纳答案by codejockie
Just name your private variables as you want but don't use _. You could create your own standard and stick to it.
只需根据需要命名您的私有变量，但不要使用_. 您可以创建自己的标准并坚持下去。
Setters and getters are like any other functions so you can follow the method naming convention to name.
Setter 和 getter 就像任何其他函数一样，因此您可以遵循方法命名约定来命名。
Do not use "_" as a prefix for private properties.
Use whole words in names when possible.
不要使用“_”作为私有属性的前缀。
尽可能在名称中使用整个单词。
回答by Daniel Tran
Underscore "_" prefix for private fields is out-of-date style. It's better to name your variable in a readable and friendly way.
私有字段的下划线“_”前缀是过时的样式。最好以可读和友好的方式命名变量。
See Microsoft Typescript coding convention here
请参阅此处的Microsoft Typescript 编码约定
- Do not use "_" as a prefix for private properties.
- 不要使用“_”作为私有属性的前缀。
回答by Ali Adravi
Those who say, must not use the "_", for them, here is some code from TypeScript site:
那些说一定不能使用“_”的人，对于他们来说，这是来自TypeScript 站点的一些代码：
class Employee {
private _fullName: string;
get fullName(): string {
return this._fullName;
}
this._fullName = ......
}
Same question on Stackoverflow, you should have a look on it, specially the answer.
关于Stackoverflow 的同样问题，你应该看看它，特别是答案。
For the time being, if accept, we should not use _, then what are other better ways?
暂时，如果accept，我们不应该使用_，那么还有什么更好的方法呢？
Let's take your example of email, if we will not use _ then, we will come something like this:
让我们以您的电子邮件为例，如果我们不使用 _ 那么，我们将是这样的：
memebr: to, get/set: emailTo
member: from get/set: emailFrom
might be you can think some better name, but every time you need to think, which is not very common in developer world!
可能你可以想到一些更好的名字，但每次你都需要思考，这在开发者世界中并不常见！
Using _ and same name for property is easy to check the code otherwise we will be keep mapping which property to which member.
使用 _ 和相同名称的属性很容易检查代码，否则我们将保持将哪个属性映射到哪个成员。
BUT:If you have been forced by your lead on company then your can use $for member and property without it, not a rule but easy way:
但是：如果您被公司的领导强迫，那么您可以$在没有它的情况下将其用于会员和财产，这不是规则而是简单的方法：
class Employee {
private fullName$: string;
get fullName(): string {
return this.fullName$;
}
this.fullName$ = ......
}
The Choice Is Yours!!!
这是你的选择！！！
