NodeJS公开了一个名为__dirname的全局变量。

__dirname返回JavaScript文件所在文件夹的完整路径。

因此，作为一个例子，对于Windows，如果我们用下面的行创建一个脚本文件:

console.log(__dirname);

然后使用以下命令运行脚本:

node ./innerFolder1/innerFolder2/innerFolder3/index.js

输出将是: C: \用户…<项目目录> \ innerFolder1 \ innerFolder2 \ innerFolder3

使用__dirname ! !

__dirname

当前模块的目录名。这与__filename的path.dirname()相同。

例如:在/Users/mjr中运行node Example .js

console.log(__dirname);
// Prints: /Users/mjr
console.log(path.dirname(__filename));
// Prints: /Users/mjr

https://nodejs.org/api/modules.html#modules_dirname

对于esmodule，你会想要使用: import.meta.url

使用path模块的basename方法:

var path = require('path');
var filename = path.basename(__filename);
console.log(filename);

下面是上面例子的文档。

正如Dan指出的，Node正在处理带有“——experimental-modules”标志的ECMAScript模块。节点12仍然支持前面提到的__dirname和__filename。

如果您正在使用——experimental-modules标志，还有另一种方法。

另一种方法是获取当前ES模块的路径:

import { fileURLToPath } from 'url';
const __filename = fileURLToPath(new URL(import.meta.url));

对于包含当前模块的目录:

import { fileURLToPath } from 'url';
import path from 'path';

const __dirname = path.dirname(fileURLToPath(new URL(import.meta.url)));

I know this is pretty old, and the original question I was responding to is marked as duplicate and directed here, but I ran into an issue trying to get jasmine-reporters to work and didn't like the idea that I had to downgrade in order for it to work. I found out that jasmine-reporters wasn't resolving the savePath correctly and was actually putting the reports folder output in jasmine-reporters directory instead of the root directory of where I ran gulp. In order to make this work correctly I ended up using process.env.INIT_CWD to get the initial Current Working Directory which should be the directory where you ran gulp. Hope this helps someone.

var reporters = require('jasmine-reporters');
var junitReporter = new reporters.JUnitXmlReporter({
  savePath: process.env.INIT_CWD + '/report/e2e/',
  consolidateAll: true,
  captureStdout: true
 });

Node.js 10支持ECMAScript模块，其中__dirname和__filename不再可用。

然后，要获得当前ES模块的路径，必须使用:

import { fileURLToPath } from 'url';

const __filename = fileURLToPath(import.meta.url);

对于包含当前模块的目录:

import { dirname } from 'path';
import { fileURLToPath } from 'url';

const __dirname = dirname(fileURLToPath(import.meta.url));

当涉及到主脚本时，它非常简单:

process.argv[1]

来自Node.js文档:

process.argv 包含命令行参数的数组。第一个元素是“node”，第二个元素是JavaScript文件的路径。下一个元素将是任何额外的命令行参数。

如果你需要知道模块文件的路径，那么使用__filename。