node. JS Path Object

The path object in Nodejs, which is used to manipulate the directory object, improves development efficiency.
Using the Nodejs Path command is similar to using a shell script command under Linux.
Introduce the Path object:

var path = require (' path ');

A more practical approach:

Format path Path.normalize (p)
Features: formats non-conforming paths, simplifies processing of complex path judgments among developers

Example:

Path.normalize ('/foo/bar//baz/asdf/quux/. '); = '/FOO/BAR/BAZ/ASDF '

Path merge Path.join ([path1], [path2], [...])

Feature: Concatenate all names in Path.seq, then format them with Normailze

Example:

Path.join ('///foo ', ' Bar ', '//baz/asdf ', ' quux ', ' ... '); = '/FOO/BAR/BAZ/ASDF '

Path Finder path.resolve ([from ...], to)

Features: equivalent to the constant call system of the CD command

Example:

Path.resolve (' Foo/bar ', '/tmp/file/', ' ... ', '/'. /subfile ')//equivalent: CD FOO/BARCD/TMP/FILE/CD. CD A/.. /subfilepwd

Relative path Path.relative (from, to)

Feature: Returns the relative position string of a path relative to another path, equivalent to: Path.resolve (from, path.relative (from)) = = Path.resolve (To)

Example:

Path.relative (' c:\\orandea\\test\\aaa ', ' c:\\orandea\\impl\\bbb ') = '. \\.. \\IMPL\\BBB ' path.relative ('/data/orandea/test/aaa ', '/data/orandea/impl/bbb ') = '. /.. /IMPL/BBB '

Folder name Path.dirname (p)

Feature: Return the folder name where the path is located

Example:

Path.dirname ('/foo/bar/baz/asdf/quux ') = '/foo/bar/baz/asdf '

File name Path.basename (p, [ext])

Features: Returns the specified file name and returns the result to exclude the [ext] suffix string

Example:

Path.basename ('/foo/bar/baz/asdf/quux.html ') = ' quux.html ' path.basename ('/foo/bar/baz/asdf/quux.html ', '. html ') = ' Quux '

Extension name Path.extname (p)

Feature: Returns the extension name of the specified file name

Example:

Path.extname (' index.html ') = '. html ' path.extname (' Index. ') = '. ' Path.extname (' index ') = '

File separators for specific platforms PATH.SEP

Features: Gets the delimiter of the file path, mainly related to the operating system

Example:
Linux:

' Foo/bar/baz '. Split (path.sep) =>[' foo ', ' Bar ', ' Baz ']

window:

' Foo\\bar\\baz '. Split (path.sep) =>[' foo ', ' Bar ', ' Baz ']

Path delimiter for a specific platform Path.delimiter

The path delimiter for a particular platform, ' ; or ' : .

Examples on *nix:

Process.env.PATH.split (Path.delimiter)//returns['/usr/bin ', '/bin ', '/usr/sbin ', '/sbin ', '/usr/local/bin ']

Examples on Windows:

Console.log (Process.env.PATH)//' C:\Windows\system32; C:\Windows; C:\Program files\nodejs\ ' Process.env.PATH.split (path.delimiter)//returns[' C:\Windows\system32 ', ' C:\Windows ', ' C : \program Files\nodejs\ '] Process.env.PATH.split (path.delimiter)//returns[' C:\Windows\system32 ', ' C:\Windows ', ' C : \program Files\nodejs\ ']

　　

node. JS Path Object