Node.js stats.mode Property from fs.Stats Class

The stats.mode property is an inbuilt application programming interface of the fs.Stats class which is used to get the file type and mode as bit-field.

Syntax:

stats.mode;

Return Value: It returns a number or BigInt value that represents a bit-field that describes the file type and mode.

Below examples illustrate the use of stats.mode in Node.js:

Example 1:

// Node.js program to demonstrate the
// stats.mode property

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

// Calling fs.Stats stats.mode for files
// using stat
fs.stat('./filename.txt', (err, stats) => {
    if (err) throw err;
    console.log("using stat: the type and "
        + "mode bit-field of the file is "
        + stats.mode);
});

// Using lstat
fs.lstat('./filename.txt', (err, stats) => {
    if (err) throw err;
    console.log("using lstat: the type and "
        + "mode bit-field of the file is "
        + stats.mode);
});

// For directories
// Using stat
fs.stat('./', (err, stats) => {
    if (err) throw err;
    console.log("using stat: the type and "
        + "mode bit-field of the file is "
        + stats.mode);
});

// Using lstat
fs.lstat('./', (err, stats) => {
    if (err) throw err;
    console.log("using lstat: the type and "
        + "mode bit-field of the file is "
        + stats.mode);
});

Output:

using stat: the type and mode bit-field of the file is  33206
using lstat: the type and mode bit-field of the file is  33206
using stat: the type and mode bit-field of the file is  16822
using lstat: the type and mode bit-field of the file is  16822

Example 2:

// Node.js program to demonstrate the
// stats.mode property

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

// Calling fs.Stats stats.mode
(async() => {
    const stats = await fs.stat('./filename.txt');
    console.log("using stat synchronous: the type "
        + "and mode bit-field of the file is "
        + stats.mode);
})().catch(console.error)

Output:

(node:9448) ExperimentalWarning: The fs.promises API
is experimental 
using stat synchronous: the type and mode bit-field 
of the file is  33206

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_mode