Node.js path.dirname()方法
原文:https://www.geeksforgeeks.org/node-js-path-dirname-method/
path.dirname()方法用于获取给定路径的目录名。它忽略了各自平台的尾部目录分隔符。
语法:
path.dirname( path )
参数:该函数接受一个参数，如上所述，如下所述:
- Path: is the file path used to extract the directory name. If this parameter is not a string value, it will throw a type error.
返回值:返回一个包含路径目录的字符串。
下面的程序说明了 Node.js 中的 path.dirname()方法:
例 1:
// Node.js program to demonstrate the
// path.dirname() method
// Import the path module
const path = require('path');
// Complete file path
path1 = path.dirname("/users/admin/website/index.html");
console.log(path1)
// Only file name
// returns a period (.)
path2 = path.dirname("readme.md");
console.log(path2)
// Path with file not specified
path3 = path.dirname("website/post/comments")
console.log(path3);
输出:
/users/admin/website
.
website/post
例 2:
// Node.js program to demonstrate the
// path.dirname() method
// Import the path module
const path = require('path');
console.log("File name:", __filename);
path1 = path.dirname(__filename);
console.log(path1);
console.log("Directory name:", __dirname);
path2 = path.dirname(__dirname);
console.log(path2);
输出:
File name: G:\tutorials\nodejs-path-dirname\index.js
G:\tutorials\nodejs-path-dirname
Directory name: G:\tutorials\nodejs-path-dirname
G:\tutorials
参考:T2】https://nodejs.org/api/path.html#path_path_dirname_path
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