Path.relative('/app/views/home.html', '/app/layout/index.html') The path.relative() function takes two paths and returns the path to the second path relative to the first. But the path module has several more advanced functions, such as path.relative(). *įunctions like path.join() and path.extname() cover most use cases for working with file paths. The path.parse() function is also how you can get the file’s name without any extension. Path.dirname('/path/to/test.txt') // '/path/to'ĭo you need both the extension and the directory? The path.parse() function returns an object containing the path broken up into five different components, including the extension and directory. path.basename('/path/to/test.txt') // 'test.txt' The path module also has path.basename() and path.dirname() functions, which get the file name (including the extension) and directory, respectively. Path.extname('/path/to/.gitignore') // '' in the name, or if the path is a dotfile. in the string doesn’t work if there’s a directory with a. Like joining two paths, getting the file extension is trickier than it first seems. For example, the path.extname() function returns the file extension as a string: path.extname('/path/to/test.txt') // '.txt' The path module also has several functions for extracting path components, such as the file extension or directory. The path.join() function handles leading and trailing slashes for you, like so: path.join('data', 'test.txt') // 'data/test.txt' For example, you may accidentally end up with a duplicate path separator if you try to join two paths manually. Numerous edge cases pop up when working with file system paths. The path.join() function handles this for you because path.join('data', 'test.txt') returns 'data/test.txt' on both Linux and OSX, and 'data\\test.txt' on Windows. Windows uses backslashes ( \) rather than forward slashes ( /) as path separators. join('/') // '/path/to/test.txt'įirst, for Windows support. You may be wondering why you’d use the path.join() function instead of using string concatenation. The path.join() function merges one or more path segments into a single string, as shown below. The most commonly used function in the path module is path.join(). In this blog post, I’ll describe some common patterns for working with the path module, and why you should use the path module rather than manipulate paths into strings. The path module is essential if you’re building a CLI tool that supports OSX, Linux, and Windows.Įven if you’re building a backend service that only runs on Linux, the path module is still helpful for avoiding edge cases when manipulating paths. The Node.js path module is a built-in module that helps you work with file system paths in an OS-independent way. Val Karpov Follow Node.js Open source Blogger, author x2.
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