Node.js stats.isCharacterDevice() Method from fs.Stats Class

Last Updated : 29 Jun, 2020
The stats.isCharacterDevice() method is an inbuilt application programming interface of the fs.Stats class which is used to check whether fs.Stats object is of a character device or not. Syntax: 
stats.isCharacterDevice();
Parameters: This method does not accept any parameter. Return Value: This method returns a boolean value, which is true if fs.Stats object describes a character device, false otherwise. Below examples illustrate the use of stats.isCharacterDevice() method in Node.js: Example 1: javascript 
// Node.js program to demonstrate the   
// stats.isCharacterDevice() Method

// Accessing fs module
const fs = require('fs');

// Calling fs.Stats isCharacterDevice() method
fs.stat('./filename.txt', (err, stats) => {
    if (err) throw err;

    // console.log(`stats: ${JSON.stringify(stats)}`);
    console.log(stats.isCharacterDevice());
});
Output: 
false
Example 2: javascript 
// Node.js program to demonstrate the   
// stats.isCharacterDevice() Method

// Accessing fs module
const fs = require('fs');

// Calling fs.Stats isCharacterDevice() method
fs.stat('./filename.txt', (err, stats) => {
    if (err) throw err;
    // console.log(`stats: ${JSON.stringify(stats)}`);

    if (stats.isCharacterDevice()) {
        console.log("fs.Stats describes a "
                + "character device");
    } else {
        console.log("fs.Stats does not "
            + "describe a character device");
    }
});
Output: 
fs.Stats does not describe a character device
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_ischaracterdevice
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