Node.js stats.blksize Property from fs.Stats Class
Last Updated :
26 Jun, 2020
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The stats.blksize property is an inbuilt application programming interface of the fs.Stats class is used to get the block size for I/O operations in the file system in bytes.
Syntax:
javascript
Output:
javascript
Output:
stats.blksize;Return Value: It returns a number or BigInt value which represents the block size for I/O operations in the file system in bytes. Below examples illustrate the use of stats.blksize in Node.js: Example 1:
// Node.js program to demonstrate the
// stats.blksize property
// Accessing fs module
const fs = require('fs');
// Calling fs.Stats stats.blksize
// using stat
fs.stat('./', (err, stats) => {
if (err) throw err;
console.log("using stat: the block "
+ "size for I/O operations in the"
+ " file system in bytes is "
+ stats.blksize);
});
// Using lstat
fs.lstat('./', (err, stats) => {
if (err) throw err;
console.log("using lstat: the block "
+ "size for I/O operations in the "
+ "file system in bytes is "
+ stats.blksize);
});
using stat: the block size for I/O operations in the file in bytes is 4096 using lstat: the block size for I/O operations in the file in bytes is 4096Example 2:
// Node.js program to demonstrate the
// stats.blksize property
// Accessing fs module
const fs = require('fs').promises;
// Calling fs.Stats stats.blksize
(async () => {
const stats = await fs.stat('./');
console.log("using stat synchronous: "
+ "the block size for I/O operations"
+ " in the file system in bytes is "
+ stats.blksize);
})().catch(console.error)
(node:6376) ExperimentalWarning: The fs.promises API is experimental using stat synchronous: the block size for I/O operations in the file system in bytes is 4096Note: 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_blksize
