Instructions for using the path.dirname method in node.js_node.js

Method description:

Return the directory of path. Similar to UNIX directory commands.

Grammar:

Copy code The code is as follows:

path.dirname(p)

Since this method belongs to the path module, the path module needs to be introduced before use (var path= require(“path”) )

Receive parameters:

p path address

Example:

Copy code The code is as follows:

var path= require("path");
path.dirname('/foo/bar/baz/asdf/quux')
// returns
'/foo/bar/baz/asdf'

Source code:

Copy code The code is as follows:

exports.dirname = function(path) {
var result = splitPath(path),
root = result[0],
       dir = result[1];

if (!root && !dir) {
// No dirname whatsoever
Return '.';
}

if (dir) {
// It has a dirname, strip trailing slash
dir = dir.substr(0, dir.length - 1);
}

Return root dir;
};