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

  • Last Updated : 29 Jun, 2020

The stats.blocks property is an inbuilt application programming interface of the fs.Stats class is used to get the number of blocks allocated for the file.

Syntax:

stats.blocks;

Return Value: It returns a number or BigInt value that represents the number of blocks allocated for the file.

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

Example 1:




// Node.js program to demonstrate the
// stats.blocks property
  
// Accessing fs module
const fs = require('fs');
  
// Calling fs.Stats stats.blocks
// using stat
fs.stat('./', (err, stats) => {
    if (err) throw err;
  
    // The number of blocks allocated
    // for the file 
    console.log("using stat: " 
                + stats.blocks);
});
  
// Using lstat
fs.lstat('./', (err, stats) => {
    if (err) throw err;
  
    // The number of blocks allocated
    // for the file 
    console.log("using lstat: " 
                + stats.blocks);
});

Output:

using stat: 8
using lstat: 8

Example 2:




// Node.js program to demonstrate the
// stats.blocks property
  
// Accessing fs module
const fs = require('fs').promises;
  
// Calling fs.Stats stats.blocks
(async () => {
    const stats = await fs.stat('./filename.txt');
  
    // The number of blocks allocated
    // for the file
    console.log("using stat synchronous: "
                + stats.blocks);
})().catch(console.error)

Output:

using stat synchronous: 8

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_blocks


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