1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
# Path
Stability: 3 - Stable
This module contains utilities for handling and transforming file
paths. Almost all these methods perform only string transformations.
The file system is not consulted to check whether paths are valid.
Use `require('path')` to use this module. The following methods are provided:
## path.normalize(p)
Normalize a string path, taking care of `'..'` and `'.'` parts.
When multiple slashes are found, they're replaced by a single one;
when the path contains a trailing slash, it is preserved.
On Windows backslashes are used.
Example:
path.normalize('/foo/bar//baz/asdf/quux/..')
// returns
'/foo/bar/baz/asdf'
## path.join([path1], [path2], [...])
Join all arguments together and normalize the resulting path.
Arguments must be strings. In v0.8, non-string arguments were
silently ignored. In v0.10 and up, an exception is thrown.
Example:
path.join('/foo', 'bar', 'baz/asdf', 'quux', '..')
// returns
'/foo/bar/baz/asdf'
path.join('foo', {}, 'bar')
// throws exception
TypeError: Arguments to path.join must be strings
## path.resolve([from ...], to)
Resolves `to` to an absolute path.
If `to` isn't already absolute `from` arguments are prepended in right to left
order, until an absolute path is found. If after using all `from` paths still
no absolute path is found, the current working directory is used as well. The
resulting path is normalized, and trailing slashes are removed unless the path
gets resolved to the root directory. Non-string `from` arguments are ignored.
Another way to think of it is as a sequence of `cd` commands in a shell.
path.resolve('foo/bar', '/tmp/file/', '..', 'a/../subfile')
Is similar to:
cd foo/bar
cd /tmp/file/
cd ..
cd a/../subfile
pwd
The difference is that the different paths don't need to exist and may also be
files.
Examples:
path.resolve('/foo/bar', './baz')
// returns
'/foo/bar/baz'
path.resolve('/foo/bar', '/tmp/file/')
// returns
'/tmp/file'
path.resolve('wwwroot', 'static_files/png/', '../gif/image.gif')
// if currently in /home/myself/node, it returns
'/home/myself/node/wwwroot/static_files/gif/image.gif'
## path.isAbsolute(path)
Determines whether `path` is an absolute path. An absolute path will always
resolve to the same location, regardless of the working directory.
Posix examples:
path.isAbsolute('/foo/bar') // true
path.isAbsolute('/baz/..') // true
path.isAbsolute('qux/') // false
path.isAbsolute('.') // false
Windows examples:
path.isAbsolute('//server') // true
path.isAbsolute('C:/foo/..') // true
path.isAbsolute('bar\\baz') // false
path.isAbsolute('.') // false
## path.relative(from, to)
Solve the relative path from `from` to `to`.
At times we have two absolute paths, and we need to derive the relative
path from one to the other. This is actually the reverse transform of
`path.resolve`, which means we see that:
path.resolve(from, path.relative(from, to)) == path.resolve(to)
Examples:
path.relative('C:\\orandea\\test\\aaa', 'C:\\orandea\\impl\\bbb')
// returns
'..\\..\\impl\\bbb'
path.relative('/data/orandea/test/aaa', '/data/orandea/impl/bbb')
// returns
'../../impl/bbb'
## path.dirname(p)
Return the directory name of a path. Similar to the Unix `dirname` command.
Example:
path.dirname('/foo/bar/baz/asdf/quux')
// returns
'/foo/bar/baz/asdf'
## path.basename(p, [ext])
Return the last portion of a path. Similar to the Unix `basename` command.
Example:
path.basename('/foo/bar/baz/asdf/quux.html')
// returns
'quux.html'
path.basename('/foo/bar/baz/asdf/quux.html', '.html')
// returns
'quux'
## path.extname(p)
Return 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. Examples:
path.extname('index.html')
// returns
'.html'
path.extname('index.coffee.md')
// returns
'.md'
path.extname('index.')
// returns
'.'
path.extname('index')
// returns
''
## path.sep
The platform-specific file separator. `'\\'` or `'/'`.
An example on *nix:
'foo/bar/baz'.split(path.sep)
// returns
['foo', 'bar', 'baz']
An example on Windows:
'foo\\bar\\baz'.split(path.sep)
// returns
['foo', 'bar', 'baz']
## path.delimiter
The platform-specific path delimiter, `;` or `':'`.
An example on *nix:
console.log(process.env.PATH)
// '/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin'
process.env.PATH.split(path.delimiter)
// returns
['/usr/bin', '/bin', '/usr/sbin', '/sbin', '/usr/local/bin']
An example 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\']
|
