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📜  Node.js路径

📅  最后修改于: 2020-12-24 03:44:45             🧑  作者: Mango

Node.js路径

Node.js路径模块用于处理和转换文件路径。可以使用以下语法导入该模块：

句法：

var path =  require ("path")

Node.js路径方法

让我们看看路径模块中使用的方法列表：

Index Method Description
1. path.normalize(p) It is used to normalize a string path, taking care of ‘..’ and ‘.’ parts.
2. path.join([path1][, path2][, …]) It is used to join all arguments together and normalize the resulting path.
3. path.resolve([from …], to) It is used to resolve an absolute path.
4. path.isabsolute(path) It determines whether path is an absolute path. an absolute path will always resolve to the same location, regardless of the working directory.
5. path.relative(from, to) It is used to solve the relative path from “from” to “to”.
6. path.dirname(p) It return the directory name of a path. It is similar to the unix dirname command
7. path.basename(p[, ext]) It returns the last portion of a path. It is similar to the Unix basename command.
8. path.extname(p) It returns the extension of the path, from the last ‘.’ to end of string in the last portion of the path. if there is no ‘.’ in the last portion of the path or the first character of it is ‘.’, then it returns an empty string.
9. path.parse(pathstring) It returns an object from a path string.
10. path.format(pathobject) It returns a path string from an object, the opposite of path.parse above.

Node.js路径示例

文件：path_example.js

var path = require("path");
// Normalization
console.log('normalization : ' + path.normalize('/sssit/javatpoint//node/newfolder/tab/..'));
// Join
console.log('joint path : ' + path.join('/sssit', 'javatpoint', 'node/newfolder', 'tab', '..'));
// Resolve
console.log('resolve : ' + path.resolve('path_example.js'));
// Extension 
console.log('ext name: ' + path.extname('path_example.js'));

打开Node.js命令提示符并运行path_example.js：

node path_example.js