node.js - 如何检测 Node.js 中的入口文件？

Question

如何检测Node.js中的入口文件？

例如，如果我通过键入 node file1.js 启动我的应用程序，我怎么知道 file1.js 是入口点？

Answer 1

你也可以使用require.main。

Accessing the main module When a file is run directly from Node, require.main is set to its module. That means that you can determine whether a file has been run directly by testing

require.main === module

For a file foo.js, this will be true if run via node foo.js, but false if run by require('./foo').

Because module provides a filename property (normally equivalent to __filename), the entry point of the current application can be obtained by checking require.main.filename.

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