Node.js stats.dev Property Last Updated : 08 Oct, 2021 Comments Improve Suggest changes Like Article Like Report 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: javascript // 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: javascript // 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 Comment More infoAdvertise with us G gekcho Follow Improve Article Tags : Web Technologies Node.js Node.js-fs-module Similar Reads Node JS fs.readFile() Method ​In Node.js, the fs.readFile() method is a fundamental tool for reading files asynchronously, allowing your application to remain responsive while accessing file data. This method is part of Node.js's File System (fs) module, which provides an API for interacting with the file system.Syntaxfs.readFi 3 min read Node.js fs.exists() Method The fs exists method in node is used to check if the input file or the directory exists or not. It is an inbuilt application programming interface of fs module which provides an API for interacting with the file system in a manner closely modeled around POSIX functions. 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