javascript 我什么时候应该用首字母大写命名事物？
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When should I name things with initial capital letters?
提问by patad
I have always wondered whento use identifiers (for example, functions) with capital first letter instead of camel case. I always write my JS in camel case like this:
我一直想知道何时使用首字母大写而不是驼峰式的标识符（例如，函数）。我总是像这样在驼峰式案例中编写我的 JS：
function doStuff() {}
var simpleVar = 'some stuff',
myAry = [],
myObj = {};
... But I know I am supposed to name some things with capital first letters. I just don't know WHEN this rule applies. Hope somebody can make things a bit clearer to me.
...但我知道我应该用大写的第一个字母命名一些东西。我只是不知道这条规则何时适用。希望有人能让我更清楚一些。
回答by louis.luo
According to the book "Javascript: the good parts", you should only capitalise the first character of the name of a function when you need to construct the object by "new" keyword.
根据“Javascript：好的部分”一书，当您需要通过“new”关键字构造对象时，您应该只将函数名称的第一个字符大写。
This is called "the Constructor Invocation Pattern", a way to inherits.
这称为“构造函数调用模式”，是一种继承方式。
回答by Peter-Paul van Gemerden
The convention is to name constructor functions(i.e. functions that will be used with the newkeyword) with starting capital.
约定是用起始大写命名构造函数（即将与new关键字一起使用的函数）。
function MyType(simpleVar) {
this.simpleVar = simpleVar;
}
myObject = new MyType(42);
回答by Madara's Ghost
The name convention states that class names are named with a first capital letter, I'm not sure how it's like with javascript, which is a prototype based language, but basically it's
命名约定规定类名用第一个大写字母命名，我不确定它是如何使用基于原型的语言 javascript 的，但基本上它是
class ClassName
var varName
function funcName()
