Node.js | stats.birthtime Property

The stats.birthtime property is an inbuilt application programming interface of the fs.Stats class is used to get the timestamp when the file is created.

Syntax:

stats.birthtime

Return Value: It returns a Date that represents the timestamp when the file has been created.

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

Example 1:



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// Node.js program to demonstrate the   
// stats.birthtime property
  
// Accessing fs module
const fs = require('fs');
  
// Calling stats.birthtime property
// from  fs.Stats class using stat
fs.stat('./', (err, stats) => {
    if (err) throw err;
  
    // The timestamp when the file is created
    console.log("Using stat: " + stats.birthtime);
});
  
// Using lstat
fs.lstat('./filename.txt', (err, stats) => {
    if (err) throw err;
  
    // The timestamp when the file is created
    console.log("Using lstat: " + stats.birthtime);
});

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Output:

Using stat: Wed May 13 2020 18:38:31 GMT+0530 (India Standard Time)
Using lstat: Sun Jun 21 2020 01:22:55 GMT+0530 (India Standard Time)

Example 2:

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// Node.js program to demonstrate the   
// stats.birthtime property
  
// Accessing fs module
const fs = require('fs').promises;
  
// Calling fs.Stats stats.birthtime
(async () => {
    const stats = await fs.stat('./example_file.txt');
  
    // The timestamp when the file is created 
    console.log("Using stat synchronous: "
        + stats.birthtime);
})().catch(console.error)

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Output:

Using stat synchronous: Sun Jun 21 2020 01:22:55 GMT+0530 
                                    (India Standard Time)

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_birthtime




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