Node.js stats.dev Property
Last Updated :
08 Oct, 2021
Improve
The stats.dev property is an inbuilt application programming interface of the fs.Stats class is used to get the numeric (number / bigint) identity of the device in which the file is situated.
Syntax:
stats.dev;
Parameters: This property does not accept any parameter.
Return Value: It returns a number or BigInt value which represents the identity of the device in which the file is situated.
Below examples illustrate the use of stats.dev property in Node.js:
Example 1:
// Node.js program to demonstrate the // stats.dev Property // Accessing fs module const fs = require('fs'); // Calling fs.Stats stats.dev // using stat for file fs.stat('./filename.txt', (err, stats) => { if (err) throw err; console.log("using stat: the numeric " + "identity of the device is " + stats.dev); }); //using lstat for file fs.lstat('./filename.txt', (err, stats) => { if (err) throw err; console.log("using lstat: the numeric " + "identity of the device is " + stats.dev); }); //using stat for directory fs.stat('./', (err, stats) => { if (err) throw err; console.log("using stat: the numeric " + "identity of the device is " + stats.dev); }); //using lstat for directory fs.lstat('./', (err, stats) => { if (err) throw err; console.log("using lstat: the numeric " + "identity of the device is " + stats.dev); }); |
Output:
using stat: the numeric identity of the device is 891323748 using lstat: the numeric identity of the device is 891323748 using stat: the numeric identity of the device is 891323748 using lstat: the numeric identity of the device is 891323748
Example 2:
// Node.js program to demonstrate the // stats.dev Property // Accessing fs module const fs = require('fs').promises; // Calling stats.dev property from // fs.Stats class (async () => { const stats = await fs.stat( './fs_stat_dev.txt'); //using stat synchronous console.log("The numeric identity " + "of the device is " + stats.dev); })().catch(console.error) |
Output:
The numeric identity of the device is 891323748
Note: The above program will compile and run by using the node filename.js command and use the file_path correctly.
Reference: https://nodejs.org/api/fs.html#fs_stats_dev
