我什么时候应该用大写字母命名？ [英] When should I name things with initial capital letters?

问题描述

我总是想知道何时使用带有大写字母而不是驼峰的标识符（例如，函数）。我总是用骆驼案例写我的JS：

I have always wondered when to use identifiers (for example, functions) with capital first letter instead of camel case. I always write my JS in camel case like this:

function doStuff() {}

var simpleVar = 'some stuff',
    myAry = [],
    myObj = {};

...但我知道我应该用首字母命名一些东西。我只是不知道这条规则适用的时候。希望有人能让我更清楚一点。

... 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.

推荐答案

根据Javascript：好的部分一书，你应该当你需要通过new关键字构造对象时，只会大写函数名的第一个字符。

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.

这称为构造函数调用模式，继承的方式。

This is called "the Constructor Invocation Pattern", a way to inherits.

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