Node.js stats.uid Property from fs.Stats Class
The stats.uid property is an inbuilt application programming interface of the fs.Stats class is used to get the numeric (number / bigint) identity of the user to which the file belongs to.
Syntax:
stats.uid;
Return Value: It returns a number or BigInt value which represents the identity of the user that owns the file.
Below examples illustrate the use of stats.uid property in Node.js:
Example 1:
const fs = require( 'fs' );
fs.stat( './' , (err, stats) => {
if (err) throw err;
console.log( "using stat: numeric "
+ "identity of the user is "
+ stats.uid);
});
fs.lstat( './' , (err, stats) => {
if (err) throw err;
console.log( "using lstat: numeric "
+ "identity of the user is "
+ stats.uid);
});
fs.stat( './filename.txt' , (err, stats) => {
if (err) throw err;
console.log( "using stat: numeric "
+ "identity of the user is "
+ stats.uid);
});
fs.lstat( './filename.txt' , (err, stats) => {
if (err) throw err;
console.log( "using lstat: numeric identity"
+ " of the user is " +stats.uid);
});
|
Output:
using stat: numeric identity of the user is 9932440
using lstat: numeric identity of the user is 9932440
using stat: numeric identity of the user is 9932440
using lstat: numeric identity of the user is 9932440
Example 2:
const fs = require( 'fs' ).promises;
(async() => {
const stats = await fs.stat( './filename.txt' );
console.log( "using stat synchronous: numeric "
+ "identity of the user is " +stats.uid);
})(). catch (console.error)
|
Output:
(node:14456) ExperimentalWarning: The fs.promises API
is experimental
using stat synchronous: numeric identity of the user is 9932440
Note: The above program will compile and run by using the node filename.js
command and use the file_path correctly. This API will work correctly for POSIX system. In other systems like WINDOWS it will return 0.
Reference: https://nodejs.org/api/fs.html#fs_stats_uid
Last Updated :
26 Jun, 2020
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