如何编写可在Node.JS应用程序中全局使用的扩展方法？

Question

Take for example this "StartsWith" extension:

if (typeof String.prototype.startsWith != 'function') {
    String.prototype.startsWith = function (str) {
        return this.slice(0, str.length) == str;
    };
}

If I was writing a web app, I would stick that code in an ExtensionMethods.js page that I imported on a web page within my site.

But what about the case of using this on the server with Node.js?

Thanks!

Answer 1

Since String is globally available, it can be placed in any file that gets required. When a file gets required, it gets executed.

You don't even need to export anything.