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:
// Node.js program to demonstrate the // stats.uid property // Accessing fs module const fs = require( 'fs' ); // Calling fs.Stats stats.uid //for directory using stat fs.stat( './' , (err, stats) => { if (err) throw err; console.log( "using stat: numeric " + "identity of the user is " + stats.uid); }); //using lstat fs.lstat( './' , (err, stats) => { if (err) throw err; console.log( "using lstat: numeric " + "identity of the user is " + stats.uid); }); // For file // Using stat fs.stat( './filename.txt' , (err, stats) => { if (err) throw err; console.log( "using stat: numeric " + "identity of the user is " + stats.uid); }); // Using lstat 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:
// Node.js program to demonstrate the // stats.uid property // Accessing fs module const fs = require( 'fs' ).promises; // Calling fs.Stats stats.uid (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